/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/array-memsafety/add_last_unsafe.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:06:47,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:06:47,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:06:47,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 11:06:47,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:06:47,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:06:47,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:06:47,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:06:47,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:06:47,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:06:47,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:06:47,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:06:47,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:06:47,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:06:47,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:06:47,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:06:47,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:06:47,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:06:47,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:06:47,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:06:47,664 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 11:06:47,713 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:06:47,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:06:47,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:06:47,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:06:47,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:06:47,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:06:47,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:06:47,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:06:47,719 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:06:47,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:06:47,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:06:47,720 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:06:47,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:06:47,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:06:47,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:06:47,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:06:47,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:06:47,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:06:47,722 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:06:47,722 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:06:47,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:06:47,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:06:47,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:06:47,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:06:47,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:06:47,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:06:47,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:06:47,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:06:47,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:06:47,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:06:47,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:06:47,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:06:47,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:06:47,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:06:48,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:06:48,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:06:48,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:06:48,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:06:48,130 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:06:48,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2022-10-16 11:06:48,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb7a836c/d20a70fd554343128ff05d6ab20b6d2c/FLAGde6ecd39c [2022-10-16 11:06:48,821 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:06:48,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2022-10-16 11:06:48,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb7a836c/d20a70fd554343128ff05d6ab20b6d2c/FLAGde6ecd39c [2022-10-16 11:06:49,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb7a836c/d20a70fd554343128ff05d6ab20b6d2c [2022-10-16 11:06:49,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:06:49,110 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:06:49,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:06:49,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:06:49,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:06:49,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fec0964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49, skipping insertion in model container [2022-10-16 11:06:49,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:06:49,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:06:49,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:06:49,500 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:06:49,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:06:49,575 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:06:49,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49 WrapperNode [2022-10-16 11:06:49,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:06:49,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:06:49,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:06:49,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:06:49,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,625 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2022-10-16 11:06:49,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:06:49,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:06:49,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:06:49,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:06:49,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,653 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:06:49,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:06:49,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:06:49,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:06:49,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (1/1) ... [2022-10-16 11:06:49,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:06:49,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:06:49,705 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 11:06:49,728 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 11:06:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:06:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:06:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:06:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:06:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:06:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:06:49,892 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:06:49,894 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:06:50,076 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:06:50,084 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:06:50,085 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 11:06:50,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:50 BoogieIcfgContainer [2022-10-16 11:06:50,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:06:50,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:06:50,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:06:50,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:06:50,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:49" (1/3) ... [2022-10-16 11:06:50,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681cd7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:50, skipping insertion in model container [2022-10-16 11:06:50,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:49" (2/3) ... [2022-10-16 11:06:50,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681cd7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:50, skipping insertion in model container [2022-10-16 11:06:50,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:50" (3/3) ... [2022-10-16 11:06:50,102 INFO L112 eAbstractionObserver]: Analyzing ICFG add_last_unsafe.i [2022-10-16 11:06:50,149 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:06:50,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 11:06:50,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:06:50,240 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;@7102faca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:06:50,240 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 11:06:50,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.625) internal successors, (26), 20 states have internal predecessors, (26), 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 11:06:50,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:06:50,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:06:50,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:50,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 11:06:50,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:06:50,292 INFO L85 PathProgramCache]: Analyzing trace with hash 119449328, now seen corresponding path program 1 times [2022-10-16 11:06:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:06:50,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666509320] [2022-10-16 11:06:50,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:06:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:50,719 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 11:06:50,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:06:50,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666509320] [2022-10-16 11:06:50,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666509320] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:06:50,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:06:50,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:06:50,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032906398] [2022-10-16 11:06:50,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:06:50,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:06:50,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:06:50,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:06:50,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:06:50,769 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.625) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 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 11:06:50,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:06:50,834 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2022-10-16 11:06:50,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:06:50,842 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 11:06:50,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:06:50,853 INFO L225 Difference]: With dead ends: 47 [2022-10-16 11:06:50,854 INFO L226 Difference]: Without dead ends: 27 [2022-10-16 11:06:50,858 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 11:06:50,863 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:06:50,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 57 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:06:50,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-16 11:06:50,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2022-10-16 11:06:50,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 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 11:06:50,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-10-16 11:06:50,904 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 8 [2022-10-16 11:06:50,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:06:50,905 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-10-16 11:06:50,905 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 11:06:50,905 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-10-16 11:06:50,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:06:50,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:06:50,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:50,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:06:50,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 11:06:50,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:06:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash -592086633, now seen corresponding path program 1 times [2022-10-16 11:06:50,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:06:50,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099639099] [2022-10-16 11:06:50,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:50,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:06:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:50,994 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 11:06:50,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:06:50,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099639099] [2022-10-16 11:06:50,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099639099] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:06:50,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:06:50,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:06:50,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053377460] [2022-10-16 11:06:50,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:06:50,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:06:50,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:06:50,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:06:50,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:06:50,999 INFO L87 Difference]: Start difference. First operand 21 states and 24 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 11:06:51,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:06:51,026 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-10-16 11:06:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:06:51,027 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 11:06:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:06:51,028 INFO L225 Difference]: With dead ends: 27 [2022-10-16 11:06:51,028 INFO L226 Difference]: Without dead ends: 21 [2022-10-16 11:06:51,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:06:51,030 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:06:51,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:06:51,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-16 11:06:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-16 11:06:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:06:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-10-16 11:06:51,037 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9 [2022-10-16 11:06:51,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:06:51,037 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-10-16 11:06:51,037 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 11:06:51,038 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-10-16 11:06:51,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:06:51,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:06:51,039 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:51,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:06:51,039 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 11:06:51,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:06:51,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2024593004, now seen corresponding path program 1 times [2022-10-16 11:06:51,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:06:51,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485621771] [2022-10-16 11:06:51,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:51,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:06:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:51,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:06:51,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:06:51,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485621771] [2022-10-16 11:06:51,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485621771] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:06:51,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098415672] [2022-10-16 11:06:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:51,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:06:51,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:06:51,265 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 11:06:51,278 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 11:06:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:51,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:06:51,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:06:51,442 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 11:06:51,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:06:51,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098415672] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:06:51,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:06:51,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 11:06:51,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685008058] [2022-10-16 11:06:51,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:06:51,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:06:51,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:06:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:06:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:06:51,447 INFO L87 Difference]: Start difference. First operand 21 states and 23 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 11:06:51,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:06:51,490 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-10-16 11:06:51,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:06:51,491 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 11:06:51,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:06:51,492 INFO L225 Difference]: With dead ends: 46 [2022-10-16 11:06:51,493 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 11:06:51,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:06:51,495 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 27 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:06:51,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 27 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:06:51,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 11:06:51,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2022-10-16 11:06:51,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.25) internal successors, (30), 27 states have internal predecessors, (30), 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 11:06:51,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-10-16 11:06:51,504 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 12 [2022-10-16 11:06:51,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:06:51,504 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-10-16 11:06:51,504 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 11:06:51,505 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-10-16 11:06:51,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:06:51,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:06:51,506 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:51,538 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 11:06:51,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:06:51,722 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 11:06:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:06:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1631565994, now seen corresponding path program 1 times [2022-10-16 11:06:51,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:06:51,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684530726] [2022-10-16 11:06:51,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:51,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:06:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:51,895 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 11:06:51,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:06:51,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684530726] [2022-10-16 11:06:51,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684530726] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:06:51,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756996924] [2022-10-16 11:06:51,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:51,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:06:51,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:06:51,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:06:51,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:06:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:51,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:06:51,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:06:52,008 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 11:06:52,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:06:52,053 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 11:06:52,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756996924] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:06:52,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:06:52,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:06:52,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955104639] [2022-10-16 11:06:52,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:06:52,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:06:52,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:06:52,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:06:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:06:52,057 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 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 11:06:52,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:06:52,189 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-10-16 11:06:52,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:06:52,189 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 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 11:06:52,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:06:52,191 INFO L225 Difference]: With dead ends: 62 [2022-10-16 11:06:52,191 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 11:06:52,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:06:52,194 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 51 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:06:52,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 98 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:06:52,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 11:06:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 39. [2022-10-16 11:06:52,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 38 states have internal predecessors, (46), 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 11:06:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2022-10-16 11:06:52,204 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 12 [2022-10-16 11:06:52,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:06:52,205 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2022-10-16 11:06:52,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 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 11:06:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-10-16 11:06:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:06:52,206 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:06:52,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:52,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:06:52,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 11:06:52,422 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 11:06:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:06:52,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1662174821, now seen corresponding path program 1 times [2022-10-16 11:06:52,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:06:52,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150476142] [2022-10-16 11:06:52,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:52,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:06:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:52,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:06:52,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:06:52,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150476142] [2022-10-16 11:06:52,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150476142] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:06:52,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:06:52,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:06:52,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727963309] [2022-10-16 11:06:52,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:06:52,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:06:52,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:06:52,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:06:52,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:06:52,843 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 11:06:52,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:06:52,906 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-10-16 11:06:52,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:06:52,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2022-10-16 11:06:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:06:52,911 INFO L225 Difference]: With dead ends: 47 [2022-10-16 11:06:52,911 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 11:06:52,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:06:52,913 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:06:52,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 43 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:06:52,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 11:06:52,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-16 11:06:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 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 11:06:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2022-10-16 11:06:52,921 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 13 [2022-10-16 11:06:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:06:52,922 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-10-16 11:06:52,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 11:06:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-10-16 11:06:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:06:52,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:06:52,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:52,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 11:06:52,924 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 11:06:52,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:06:52,925 INFO L85 PathProgramCache]: Analyzing trace with hash -961110243, now seen corresponding path program 1 times [2022-10-16 11:06:52,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:06:52,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253867238] [2022-10-16 11:06:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:52,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:06:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:53,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:06:53,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:06:53,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253867238] [2022-10-16 11:06:53,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253867238] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:06:53,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440396863] [2022-10-16 11:06:53,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:53,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:06:53,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:06:53,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:06:53,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:06:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:53,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 11:06:53,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:06:53,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:06:53,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:06:53,809 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:06:53,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-10-16 11:06:53,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:06:53,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:06:53,988 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:06:53,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 70 [2022-10-16 11:06:54,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-10-16 11:06:54,049 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:06:54,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 90 [2022-10-16 11:06:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:06:54,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440396863] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:06:54,144 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:06:54,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-10-16 11:06:54,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368627201] [2022-10-16 11:06:54,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:06:54,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 11:06:54,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:06:54,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 11:06:54,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:06:54,147 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:06:54,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:06:54,416 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-10-16 11:06:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 11:06:54,417 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 11:06:54,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:06:54,418 INFO L225 Difference]: With dead ends: 41 [2022-10-16 11:06:54,418 INFO L226 Difference]: Without dead ends: 33 [2022-10-16 11:06:54,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2022-10-16 11:06:54,420 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 34 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:06:54,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 61 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:06:54,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-16 11:06:54,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2022-10-16 11:06:54,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 31 states have internal predecessors, (37), 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 11:06:54,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-10-16 11:06:54,426 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 13 [2022-10-16 11:06:54,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:06:54,427 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-10-16 11:06:54,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:06:54,427 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-10-16 11:06:54,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:06:54,428 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:06:54,428 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:54,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:06:54,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:06:54,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 11:06:54,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:06:54,643 INFO L85 PathProgramCache]: Analyzing trace with hash -961061680, now seen corresponding path program 1 times [2022-10-16 11:06:54,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:06:54,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639352976] [2022-10-16 11:06:54,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:54,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:06:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:06:54,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:06:54,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639352976] [2022-10-16 11:06:54,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639352976] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:06:54,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437937107] [2022-10-16 11:06:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:54,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:06:54,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:06:54,706 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:06:54,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:06:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:06:54,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:06:54,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:06:54,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:06:54,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:06:54,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437937107] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:06:54,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:06:54,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:06:54,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106533177] [2022-10-16 11:06:54,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:06:54,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:06:54,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:06:54,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:06:54,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:06:54,784 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 11:06:54,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:06:54,818 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-10-16 11:06:54,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:06:54,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2022-10-16 11:06:54,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:06:54,820 INFO L225 Difference]: With dead ends: 32 [2022-10-16 11:06:54,820 INFO L226 Difference]: Without dead ends: 31 [2022-10-16 11:06:54,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:06:54,821 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:06:54,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 34 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:06:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-16 11:06:54,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-10-16 11:06:54,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 30 states have internal predecessors, (34), 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 11:06:54,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-10-16 11:06:54,828 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2022-10-16 11:06:54,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:06:54,828 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-10-16 11:06:54,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 11:06:54,829 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-10-16 11:06:54,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 11:06:54,830 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:06:54,830 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:54,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:06:55,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:06:55,045 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 11:06:55,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:06:55,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1355535327, now seen corresponding path program 2 times [2022-10-16 11:06:55,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:06:55,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842329226] [2022-10-16 11:06:55,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:06:55,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:06:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 11:06:55,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 11:06:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 11:06:55,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 11:06:55,093 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 11:06:55,094 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 11:06:55,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 11:06:55,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 11:06:55,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 11:06:55,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 11:06:55,101 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:06:55,106 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 11:06:55,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:55 BoogieIcfgContainer [2022-10-16 11:06:55,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 11:06:55,138 INFO L158 Benchmark]: Toolchain (without parser) took 6033.01ms. Allocated memory was 158.3MB in the beginning and 196.1MB in the end (delta: 37.7MB). Free memory was 131.9MB in the beginning and 98.7MB in the end (delta: 33.2MB). Peak memory consumption was 71.6MB. Max. memory is 8.0GB. [2022-10-16 11:06:55,139 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 158.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 11:06:55,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.75ms. Allocated memory is still 158.3MB. Free memory was 131.6MB in the beginning and 116.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-16 11:06:55,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.17ms. Allocated memory is still 158.3MB. Free memory was 116.4MB in the beginning and 114.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 11:06:55,140 INFO L158 Benchmark]: Boogie Preprocessor took 29.56ms. Allocated memory is still 158.3MB. Free memory was 114.5MB in the beginning and 113.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 11:06:55,140 INFO L158 Benchmark]: RCFGBuilder took 430.88ms. Allocated memory is still 158.3MB. Free memory was 113.2MB in the beginning and 102.5MB in the end (delta: 10.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 11:06:55,141 INFO L158 Benchmark]: TraceAbstraction took 5045.71ms. Allocated memory was 158.3MB in the beginning and 196.1MB in the end (delta: 37.7MB). Free memory was 101.7MB in the beginning and 98.7MB in the end (delta: 3.0MB). Peak memory consumption was 42.3MB. Max. memory is 8.0GB. [2022-10-16 11:06:55,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 158.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 464.75ms. Allocated memory is still 158.3MB. Free memory was 131.6MB in the beginning and 116.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.17ms. Allocated memory is still 158.3MB. Free memory was 116.4MB in the beginning and 114.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.56ms. Allocated memory is still 158.3MB. Free memory was 114.5MB in the beginning and 113.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 430.88ms. Allocated memory is still 158.3MB. Free memory was 113.2MB in the beginning and 102.5MB in the end (delta: 10.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 5045.71ms. Allocated memory was 158.3MB in the beginning and 196.1MB in the end (delta: 37.7MB). Free memory was 101.7MB in the beginning and 98.7MB in the end (delta: 3.0MB). Peak memory consumption was 42.3MB. 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: 526]: integer overflow possible integer overflow possible We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND FALSE !(length < 1) VAL [length=2] [L516] int *arr = __builtin_alloca (length); VAL [__builtin_alloca (length)={3:0}, arr={3:0}, length=2] [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; VAL [__builtin_alloca (length)={3:0}, a={3:0}, arr={3:0}, k=0, length=2] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() [L520] k++ VAL [__builtin_alloca (length)={3:0}, a={3:0}, arr={3:0}, k=1, length=2] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() [L520] k++ VAL [__builtin_alloca (length)={3:0}, a={3:0}, arr={3:0}, k=2, length=2] [L520] COND FALSE !(k < length) VAL [__builtin_alloca (length)={3:0}, a={3:0}, arr={3:0}, k=2, length=2] [L525] EXPR \read(*a) [L525] EXPR arr + length - 1 VAL [\read(*a)=5, __builtin_alloca (length)={3:0}, a={3:0}, arr={3:0}, arr + length - 1=2147483643, k=2, length=2] [L525] COND TRUE *a != *(arr + length - 1) [L526] EXPR \read(*a) [L526] EXPR arr + length - 1 VAL [\read(*a)=5, __builtin_alloca (length)={3:0}, a={3:0}, arr={3:0}, arr + length - 1=2147483643, k=2, length=2] [L526] *a += *(arr + length - 1) VAL [\read(*a)=5, __builtin_alloca (length)={3:0}, a={3:0}, arr={3:0}, arr + length - 1=2147483643, k=2, length=2] - UnprovableResult [Line: 520]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 526]: 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, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 341 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 249 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 296 IncrementalHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 92 mSDtfsCounter, 296 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=4, InterpolantAutomatonStates: 53, 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, 7 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 985 SizeOfPredicates, 17 NumberOfNonLiveVariables, 236 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 10/27 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 11:06:55,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...