/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ms1f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 01:12:46,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 01:12:46,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 01:12:46,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 01:12:46,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 01:12:46,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 01:12:46,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 01:12:46,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 01:12:46,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 01:12:46,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 01:12:46,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 01:12:46,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 01:12:46,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 01:12:46,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 01:12:46,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 01:12:46,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 01:12:46,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 01:12:46,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 01:12:46,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 01:12:46,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 01:12:46,957 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-01-31 01:12:46,987 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 01:12:46,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 01:12:46,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-31 01:12:46,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-31 01:12:46,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-31 01:12:46,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-31 01:12:46,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-31 01:12:46,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-31 01:12:46,990 INFO L138 SettingsManager]: * Use SBE=true [2022-01-31 01:12:46,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 01:12:46,990 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 01:12:46,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 01:12:46,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 01:12:46,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 01:12:46,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 01:12:46,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 01:12:46,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 01:12:46,991 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 01:12:46,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 01:12:46,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 01:12:46,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 01:12:46,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 01:12:46,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 01:12:46,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 01:12:46,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 01:12:46,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 01:12:46,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-31 01:12:46,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-31 01:12:46,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 01:12:46,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-31 01:12:46,993 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-31 01:12:46,993 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-31 01:12:46,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 01:12:46,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 01:12:47,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 01:12:47,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 01:12:47,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 01:12:47,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 01:12:47,222 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 01:12:47,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms1f.c [2022-01-31 01:12:47,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3c3d5cf/3fcc635936704bcc963d61724253e1a5/FLAGe7d52772f [2022-01-31 01:12:47,638 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 01:12:47,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ms1f.c [2022-01-31 01:12:47,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3c3d5cf/3fcc635936704bcc963d61724253e1a5/FLAGe7d52772f [2022-01-31 01:12:47,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3c3d5cf/3fcc635936704bcc963d61724253e1a5 [2022-01-31 01:12:47,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 01:12:47,657 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 01:12:47,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 01:12:47,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 01:12:47,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 01:12:47,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390db858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47, skipping insertion in model container [2022-01-31 01:12:47,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 01:12:47,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 01:12:47,775 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/ms1f.c[587,600] [2022-01-31 01:12:47,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 01:12:47,816 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 01:12:47,826 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/ms1f.c[587,600] [2022-01-31 01:12:47,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 01:12:47,842 INFO L208 MainTranslator]: Completed translation [2022-01-31 01:12:47,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47 WrapperNode [2022-01-31 01:12:47,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 01:12:47,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 01:12:47,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 01:12:47,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 01:12:47,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 01:12:47,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 01:12:47,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 01:12:47,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 01:12:47,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (1/1) ... [2022-01-31 01:12:47,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 01:12:47,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 01:12:47,910 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 01:12:47,911 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 01:12:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 01:12:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 01:12:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 01:12:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 01:12:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 01:12:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 01:12:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 01:12:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 01:12:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 01:12:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 01:12:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 01:12:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 01:12:48,000 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 01:12:48,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 01:12:48,126 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 01:12:48,131 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 01:12:48,131 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-31 01:12:48,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 01:12:48 BoogieIcfgContainer [2022-01-31 01:12:48,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 01:12:48,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 01:12:48,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 01:12:48,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 01:12:48,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 01:12:47" (1/3) ... [2022-01-31 01:12:48,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360d2ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 01:12:48, skipping insertion in model container [2022-01-31 01:12:48,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:12:47" (2/3) ... [2022-01-31 01:12:48,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360d2ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 01:12:48, skipping insertion in model container [2022-01-31 01:12:48,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 01:12:48" (3/3) ... [2022-01-31 01:12:48,143 INFO L111 eAbstractionObserver]: Analyzing ICFG ms1f.c [2022-01-31 01:12:48,147 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-31 01:12:48,148 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 01:12:48,189 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 01:12:48,201 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 [2022-01-31 01:12:48,202 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 01:12:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 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 01:12:48,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 01:12:48,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 01:12:48,224 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] [2022-01-31 01:12:48,225 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 01:12:48,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 01:12:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash 863653859, now seen corresponding path program 1 times [2022-01-31 01:12:48,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 01:12:48,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61981052] [2022-01-31 01:12:48,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 01:12:48,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 01:12:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:12:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 01:12:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:12:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 01:12:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:12:48,477 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 01:12:48,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 01:12:48,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61981052] [2022-01-31 01:12:48,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61981052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 01:12:48,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 01:12:48,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 01:12:48,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697829801] [2022-01-31 01:12:48,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 01:12:48,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 01:12:48,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 01:12:48,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 01:12:48,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 01:12:48,505 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 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 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 01:12:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 01:12:48,573 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2022-01-31 01:12:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 01:12:48,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 21 [2022-01-31 01:12:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 01:12:48,587 INFO L225 Difference]: With dead ends: 54 [2022-01-31 01:12:48,587 INFO L226 Difference]: Without dead ends: 25 [2022-01-31 01:12:48,591 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 01:12:48,596 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 01:12:48,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 01:12:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-31 01:12:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-01-31 01:12:48,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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 01:12:48,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-01-31 01:12:48,633 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2022-01-31 01:12:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 01:12:48,634 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-01-31 01:12:48,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 01:12:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-01-31 01:12:48,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 01:12:48,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 01:12:48,635 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] [2022-01-31 01:12:48,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 01:12:48,636 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 01:12:48,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 01:12:48,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1121819297, now seen corresponding path program 1 times [2022-01-31 01:12:48,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 01:12:48,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439821091] [2022-01-31 01:12:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 01:12:48,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 01:12:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:12:48,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 01:12:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:12:48,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 01:12:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:12:48,771 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 01:12:48,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 01:12:48,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439821091] [2022-01-31 01:12:48,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439821091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 01:12:48,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 01:12:48,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 01:12:48,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945751230] [2022-01-31 01:12:48,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 01:12:48,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 01:12:48,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 01:12:48,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 01:12:48,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-31 01:12:48,774 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 01:12:48,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 01:12:48,851 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2022-01-31 01:12:48,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 01:12:48,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 21 [2022-01-31 01:12:48,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 01:12:48,853 INFO L225 Difference]: With dead ends: 40 [2022-01-31 01:12:48,853 INFO L226 Difference]: Without dead ends: 30 [2022-01-31 01:12:48,856 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 01:12:48,858 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 01:12:48,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 25 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 01:12:48,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-01-31 01:12:48,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2022-01-31 01:12:48,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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 01:12:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-01-31 01:12:48,873 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2022-01-31 01:12:48,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 01:12:48,873 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-01-31 01:12:48,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 01:12:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-01-31 01:12:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-31 01:12:48,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 01:12:48,874 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] [2022-01-31 01:12:48,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 01:12:48,874 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 01:12:48,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 01:12:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash -667943349, now seen corresponding path program 1 times [2022-01-31 01:12:48,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 01:12:48,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832501936] [2022-01-31 01:12:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 01:12:48,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 01:12:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 01:12:48,905 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 01:12:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 01:12:48,951 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 01:12:48,951 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 01:12:48,952 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 01:12:48,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 01:12:48,955 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 01:12:48,957 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 01:12:48,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 01:12:48 BoogieIcfgContainer [2022-01-31 01:12:48,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 01:12:48,974 INFO L158 Benchmark]: Toolchain (without parser) took 1317.18ms. Allocated memory is still 178.3MB. Free memory was 121.8MB in the beginning and 93.8MB in the end (delta: 27.9MB). Peak memory consumption was 27.8MB. Max. memory is 8.0GB. [2022-01-31 01:12:48,974 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 01:12:48,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.97ms. Allocated memory is still 178.3MB. Free memory was 121.5MB in the beginning and 148.4MB in the end (delta: -26.8MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-01-31 01:12:48,975 INFO L158 Benchmark]: Boogie Preprocessor took 36.40ms. Allocated memory is still 178.3MB. Free memory was 148.4MB in the beginning and 146.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 01:12:48,975 INFO L158 Benchmark]: RCFGBuilder took 252.11ms. Allocated memory is still 178.3MB. Free memory was 146.8MB in the beginning and 135.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 01:12:48,975 INFO L158 Benchmark]: TraceAbstraction took 838.67ms. Allocated memory is still 178.3MB. Free memory was 134.7MB in the beginning and 93.8MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2022-01-31 01:12:48,977 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 178.3MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 184.97ms. Allocated memory is still 178.3MB. Free memory was 121.5MB in the beginning and 148.4MB in the end (delta: -26.8MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.40ms. Allocated memory is still 178.3MB. Free memory was 148.4MB in the beginning and 146.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 252.11ms. Allocated memory is still 178.3MB. Free memory was 146.8MB in the beginning and 135.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 838.67ms. Allocated memory is still 178.3MB. Free memory was 134.7MB in the beginning and 93.8MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. 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; VAL [\old(N)=118, N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L27] int i; [L28] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [\old(N)=0, a={-1:0}, i=0, N=1, sum={8:0}] [L31] COND TRUE i