/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:45:03,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:45:03,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:45:03,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:45:03,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:45:03,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:45:03,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:45:03,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:45:03,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:45:03,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:45:03,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:45:03,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:45:03,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:45:03,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:45:03,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:45:03,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:45:03,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:45:03,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:45:03,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:45:03,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:45:03,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:45:03,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:45:03,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:45:03,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:45:03,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 13:45:03,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:45:03,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:45:03,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:45:03,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:45:03,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:45:03,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:45:03,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:45:03,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:45:03,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:45:03,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:45:03,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:45:03,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:45:03,208 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:45:03,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:45:03,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:45:03,210 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:45:03,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:45:03,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:45:03,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:45:03,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:45:03,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:45:03,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:45:03,211 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:45:03,211 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:45:03,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:45:03,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:45:03,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:45:03,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:45:03,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:45:03,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:45:03,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:45:03,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:45:03,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:45:03,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:45:03,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:45:03,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:45:03,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:45:03,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:45:03,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:45:03,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:45:03,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:45:03,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:45:03,679 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:45:03,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c [2022-10-16 13:45:03,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0bf5e66/e662d66ebe7a446f90fcc49614d380d7/FLAG67f17f334 [2022-10-16 13:45:04,314 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:45:04,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c [2022-10-16 13:45:04,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0bf5e66/e662d66ebe7a446f90fcc49614d380d7/FLAG67f17f334 [2022-10-16 13:45:04,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0bf5e66/e662d66ebe7a446f90fcc49614d380d7 [2022-10-16 13:45:04,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:45:04,695 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:45:04,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:45:04,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:45:04,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:45:04,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:04,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706acedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04, skipping insertion in model container [2022-10-16 13:45:04,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:04,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:45:04,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:45:04,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:45:04,905 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:45:04,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:45:04,942 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:45:04,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04 WrapperNode [2022-10-16 13:45:04,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:45:04,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:45:04,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:45:04,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:45:04,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:04,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:04,988 INFO L138 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 99 [2022-10-16 13:45:04,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:45:04,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:45:04,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:45:04,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:45:05,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,016 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:45:05,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:45:05,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:45:05,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:45:05,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (1/1) ... [2022-10-16 13:45:05,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:45:05,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:45:05,063 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) [2022-10-16 13:45:05,083 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 [2022-10-16 13:45:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:45:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:45:05,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:45:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:45:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:45:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:45:05,208 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:45:05,211 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:45:05,439 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:45:05,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:45:05,450 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 13:45:05,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:05 BoogieIcfgContainer [2022-10-16 13:45:05,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:45:05,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:45:05,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:45:05,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:45:05,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:45:04" (1/3) ... [2022-10-16 13:45:05,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e5b015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:05, skipping insertion in model container [2022-10-16 13:45:05,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:04" (2/3) ... [2022-10-16 13:45:05,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e5b015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:05, skipping insertion in model container [2022-10-16 13:45:05,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:05" (3/3) ... [2022-10-16 13:45:05,466 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_-write.c [2022-10-16 13:45:05,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:45:05,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 13:45:05,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:45:05,599 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b4d3e85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:45:05,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 13:45:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 32 states have (on average 1.6875) internal successors, (54), 44 states have internal predecessors, (54), 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) [2022-10-16 13:45:05,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 13:45:05,667 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:45:05,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 13:45:05,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 13:45:05,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:45:05,688 INFO L85 PathProgramCache]: Analyzing trace with hash 925764, now seen corresponding path program 1 times [2022-10-16 13:45:05,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:45:05,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911265014] [2022-10-16 13:45:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:45:05,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:45:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:45:06,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:45:06,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:45:06,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911265014] [2022-10-16 13:45:06,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911265014] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:45:06,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:45:06,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 13:45:06,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685431858] [2022-10-16 13:45:06,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:45:06,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:45:06,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:45:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:45:06,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:45:06,118 INFO L87 Difference]: Start difference. First operand has 45 states, 32 states have (on average 1.6875) internal successors, (54), 44 states have internal predecessors, (54), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-16 13:45:06,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:45:06,259 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2022-10-16 13:45:06,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:45:06,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-10-16 13:45:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:45:06,278 INFO L225 Difference]: With dead ends: 114 [2022-10-16 13:45:06,279 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 13:45:06,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:45:06,291 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 38 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:45:06,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 63 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:45:06,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 13:45:06,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 36. [2022-10-16 13:45:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.5) internal successors, (39), 35 states have internal predecessors, (39), 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) [2022-10-16 13:45:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-10-16 13:45:06,355 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 4 [2022-10-16 13:45:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:45:06,355 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-10-16 13:45:06,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-16 13:45:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-10-16 13:45:06,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 13:45:06,358 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:45:06,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:45:06,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:45:06,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 13:45:06,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:45:06,364 INFO L85 PathProgramCache]: Analyzing trace with hash 265365646, now seen corresponding path program 1 times [2022-10-16 13:45:06,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:45:06,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081345933] [2022-10-16 13:45:06,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:45:06,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:45:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:45:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:45:06,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:45:06,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081345933] [2022-10-16 13:45:06,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081345933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:45:06,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:45:06,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:45:06,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957813851] [2022-10-16 13:45:06,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:45:06,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:45:06,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:45:06,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:45:06,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:45:06,604 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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) [2022-10-16 13:45:06,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:45:06,658 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-10-16 13:45:06,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:45:06,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 [2022-10-16 13:45:06,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:45:06,661 INFO L225 Difference]: With dead ends: 67 [2022-10-16 13:45:06,661 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 13:45:06,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:45:06,664 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:45:06,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 92 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:45:06,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 13:45:06,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 40. [2022-10-16 13:45:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 39 states have internal predecessors, (44), 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) [2022-10-16 13:45:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-10-16 13:45:06,673 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 8 [2022-10-16 13:45:06,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:45:06,673 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-10-16 13:45:06,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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) [2022-10-16 13:45:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-10-16 13:45:06,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 13:45:06,675 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:45:06,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:45:06,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:45:06,676 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 13:45:06,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:45:06,677 INFO L85 PathProgramCache]: Analyzing trace with hash -363650954, now seen corresponding path program 1 times [2022-10-16 13:45:06,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:45:06,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711507973] [2022-10-16 13:45:06,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:45:06,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:45:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:45:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:45:06,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:45:06,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711507973] [2022-10-16 13:45:06,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711507973] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:45:06,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:45:06,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:45:06,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206251513] [2022-10-16 13:45:06,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:45:06,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:45:06,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:45:06,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:45:06,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:45:06,875 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-16 13:45:06,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:45:06,963 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2022-10-16 13:45:06,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:45:06,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-10-16 13:45:06,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:45:06,967 INFO L225 Difference]: With dead ends: 105 [2022-10-16 13:45:06,967 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 13:45:06,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:45:06,972 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 36 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:45:06,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 80 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:45:06,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 13:45:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 41. [2022-10-16 13:45:06,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 40 states have internal predecessors, (45), 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) [2022-10-16 13:45:06,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-10-16 13:45:06,992 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 9 [2022-10-16 13:45:06,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:45:06,992 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-10-16 13:45:06,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-16 13:45:06,995 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-10-16 13:45:06,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 13:45:06,995 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:45:06,996 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:45:06,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:45:06,996 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 13:45:06,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:45:06,999 INFO L85 PathProgramCache]: Analyzing trace with hash -85370614, now seen corresponding path program 1 times [2022-10-16 13:45:07,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:45:07,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116467453] [2022-10-16 13:45:07,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:45:07,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:45:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:45:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:45:07,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:45:07,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116467453] [2022-10-16 13:45:07,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116467453] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:45:07,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299850946] [2022-10-16 13:45:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:45:07,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:45:07,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:45:07,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:45:07,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:45:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:45:07,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:45:07,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:45:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:45:07,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:45:07,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299850946] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:45:07,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:45:07,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2022-10-16 13:45:07,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612870321] [2022-10-16 13:45:07,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:45:07,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:45:07,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:45:07,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:45:07,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:45:07,327 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-10-16 13:45:07,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:45:07,432 INFO L93 Difference]: Finished difference Result 105 states and 116 transitions. [2022-10-16 13:45:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:45:07,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-10-16 13:45:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:45:07,434 INFO L225 Difference]: With dead ends: 105 [2022-10-16 13:45:07,434 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 13:45:07,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:45:07,437 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 55 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:45:07,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 127 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:45:07,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 13:45:07,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 45. [2022-10-16 13:45:07,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 35 states have (on average 1.4) internal successors, (49), 44 states have internal predecessors, (49), 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) [2022-10-16 13:45:07,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-16 13:45:07,446 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 12 [2022-10-16 13:45:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:45:07,447 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-16 13:45:07,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-10-16 13:45:07,447 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-16 13:45:07,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 13:45:07,448 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:45:07,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:45:07,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:45:07,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:45:07,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 13:45:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:45:07,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1648426874, now seen corresponding path program 1 times [2022-10-16 13:45:07,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:45:07,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478658113] [2022-10-16 13:45:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:45:07,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:45:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 13:45:07,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 13:45:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 13:45:07,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 13:45:07,764 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 13:45:07,766 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-10-16 13:45:07,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-10-16 13:45:07,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-10-16 13:45:07,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-10-16 13:45:07,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-10-16 13:45:07,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-10-16 13:45:07,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-10-16 13:45:07,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-10-16 13:45:07,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-10-16 13:45:07,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-10-16 13:45:07,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-10-16 13:45:07,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-10-16 13:45:07,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:45:07,777 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-16 13:45:07,783 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 13:45:07,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:45:07 BoogieIcfgContainer [2022-10-16 13:45:07,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 13:45:07,820 INFO L158 Benchmark]: Toolchain (without parser) took 3128.65ms. Allocated memory is still 158.3MB. Free memory was 134.1MB in the beginning and 66.8MB in the end (delta: 67.4MB). Peak memory consumption was 67.4MB. Max. memory is 8.0GB. [2022-10-16 13:45:07,820 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 158.3MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 13:45:07,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.43ms. Allocated memory is still 158.3MB. Free memory was 133.8MB in the beginning and 124.2MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 13:45:07,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.76ms. Allocated memory is still 158.3MB. Free memory was 124.2MB in the beginning and 122.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 13:45:07,822 INFO L158 Benchmark]: Boogie Preprocessor took 30.49ms. Allocated memory is still 158.3MB. Free memory was 122.6MB in the beginning and 121.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 13:45:07,823 INFO L158 Benchmark]: RCFGBuilder took 432.46ms. Allocated memory is still 158.3MB. Free memory was 121.2MB in the beginning and 109.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-16 13:45:07,823 INFO L158 Benchmark]: TraceAbstraction took 2363.02ms. Allocated memory is still 158.3MB. Free memory was 108.5MB in the beginning and 66.8MB in the end (delta: 41.7MB). Peak memory consumption was 42.2MB. Max. memory is 8.0GB. [2022-10-16 13:45:07,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 158.3MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 246.43ms. Allocated memory is still 158.3MB. Free memory was 133.8MB in the beginning and 124.2MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.76ms. Allocated memory is still 158.3MB. Free memory was 124.2MB in the beginning and 122.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.49ms. Allocated memory is still 158.3MB. Free memory was 122.6MB in the beginning and 121.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 432.46ms. Allocated memory is still 158.3MB. Free memory was 121.2MB in the beginning and 109.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2363.02ms. Allocated memory is still 158.3MB. Free memory was 108.5MB in the beginning and 66.8MB in the end (delta: 41.7MB). Peak memory consumption was 42.2MB. 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: 14]: integer overflow possible integer overflow possible We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 VAL [b={3:0}, i=0] [L33] COND TRUE i < 100 VAL [b={3:0}, i=0] [L34] EXPR i + 1 [L34] CALL foo(i, b, i + 1) [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=1, a={2:0}, b={3:0}, b={3:0}, i=0, n=0, size=1] [L22] COND TRUE i < size [L23] EXPR b[i] [L23] a[i] = b[i] [L22] i++ VAL [\old(n)=0, \old(size)=1, a={2:0}, b={3:0}, b={3:0}, i=1, n=0, size=1] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=1, a={2:0}, b={3:0}, b={3:0}, i=1, n=0, size=1] [L25] CALL bar(a, size) [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={2:0}, b={2:0}, i=0, res=0, size=1] [L13] COND TRUE i < size [L14] EXPR b[i] VAL [\old(size)=1, b={2:0}, b={2:0}, b[i]=2147483648, i=0, res=0, size=1] [L14] res += b[i] VAL [\old(size)=1, b={2:0}, b={2:0}, b[i]=2147483648, i=0, res=0, size=1] - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 14]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 13]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 13]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 159 mSDsluCounter, 362 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 238 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 124 mSDtfsCounter, 125 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 105 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 5 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-10-16 13:45:07,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...