/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:25:53,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:25:53,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:25:53,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:25:53,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:25:53,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:25:53,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:25:53,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:25:53,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:25:53,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:25:53,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:25:53,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:25:53,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:25:53,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:25:53,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:25:53,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:25:53,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:25:53,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:25:53,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:25:53,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:25:53,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:25:53,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:25:53,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:25:53,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:25:53,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 21:25:53,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:25:53,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:25:53,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:25:53,239 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 [2022-10-15 21:25:53,288 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:25:53,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:25:53,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:25:53,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:25:53,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:25:53,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:25:53,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:25:53,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:25:53,300 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:25:53,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:25:53,302 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:25:53,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:25:53,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:25:53,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:25:53,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:25:53,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:25:53,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:25:53,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:25:53,305 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:25:53,305 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:25:53,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:25:53,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:25:53,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:25:53,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:25:53,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:25:53,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:25:53,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:25:53,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:25:53,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:25:53,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:25:53,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:25:53,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:25:53,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:25:53,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:25:53,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:25:53,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:25:53,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:25:53,862 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:25:53,863 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:25:53,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2.c [2022-10-15 21:25:53,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01275867/687132ff68414afa950cfdf96ed054ba/FLAGaa5a54efd [2022-10-15 21:25:54,767 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:25:54,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2.c [2022-10-15 21:25:54,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01275867/687132ff68414afa950cfdf96ed054ba/FLAGaa5a54efd [2022-10-15 21:25:55,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01275867/687132ff68414afa950cfdf96ed054ba [2022-10-15 21:25:55,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:25:55,170 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:25:55,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:25:55,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:25:55,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:25:55,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bac9d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55, skipping insertion in model container [2022-10-15 21:25:55,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:25:55,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:25:55,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:25:55,480 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:25:55,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:25:55,525 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:25:55,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55 WrapperNode [2022-10-15 21:25:55,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:25:55,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:25:55,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:25:55,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:25:55,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,581 INFO L138 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2022-10-15 21:25:55,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:25:55,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:25:55,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:25:55,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:25:55,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:25:55,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:25:55,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:25:55,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:25:55,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (1/1) ... [2022-10-15 21:25:55,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:25:55,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:25:55,670 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) [2022-10-15 21:25:55,699 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 [2022-10-15 21:25:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:25:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:25:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:25:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:25:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:25:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:25:55,915 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:25:55,918 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:25:56,190 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:25:56,201 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:25:56,201 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 21:25:56,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:25:56 BoogieIcfgContainer [2022-10-15 21:25:56,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:25:56,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:25:56,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:25:56,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:25:56,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:25:55" (1/3) ... [2022-10-15 21:25:56,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6dba9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:25:56, skipping insertion in model container [2022-10-15 21:25:56,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:25:55" (2/3) ... [2022-10-15 21:25:56,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6dba9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:25:56, skipping insertion in model container [2022-10-15 21:25:56,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:25:56" (3/3) ... [2022-10-15 21:25:56,222 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2.c [2022-10-15 21:25:56,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:25:56,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-15 21:25:56,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:25:56,459 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;@363a1e11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:25:56,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-15 21:25:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 36 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) [2022-10-15 21:25:56,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 21:25:56,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:25:56,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 21:25:56,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:25:56,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:25:56,512 INFO L85 PathProgramCache]: Analyzing trace with hash 889666572, now seen corresponding path program 1 times [2022-10-15 21:25:56,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:25:56,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634181770] [2022-10-15 21:25:56,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:56,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:25:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:57,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:25:57,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:25:57,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634181770] [2022-10-15 21:25:57,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634181770] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:25:57,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:25:57,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:25:57,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721733368] [2022-10-15 21:25:57,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:25:57,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:25:57,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:25:57,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:25:57,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:25:57,212 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 36 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-10-15 21:25:57,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:25:57,328 INFO L93 Difference]: Finished difference Result 101 states and 130 transitions. [2022-10-15 21:25:57,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:25:57,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-10-15 21:25:57,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:25:57,347 INFO L225 Difference]: With dead ends: 101 [2022-10-15 21:25:57,347 INFO L226 Difference]: Without dead ends: 52 [2022-10-15 21:25:57,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:25:57,366 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 66 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:25:57,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 87 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:25:57,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-15 21:25:57,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 31. [2022-10-15 21:25:57,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.4782608695652173) 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) [2022-10-15 21:25:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-10-15 21:25:57,417 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 6 [2022-10-15 21:25:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:25:57,417 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-10-15 21:25:57,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-10-15 21:25:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-10-15 21:25:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 21:25:57,419 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:25:57,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:25:57,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:25:57,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:25:57,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:25:57,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1809808564, now seen corresponding path program 1 times [2022-10-15 21:25:57,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:25:57,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908097481] [2022-10-15 21:25:57,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:57,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:25:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:25:57,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:25:57,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908097481] [2022-10-15 21:25:57,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908097481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:25:57,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:25:57,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:25:57,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655176089] [2022-10-15 21:25:57,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:25:57,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:25:57,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:25:57,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:25:57,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:25:57,597 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-10-15 21:25:57,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:25:57,686 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2022-10-15 21:25:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:25:57,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2022-10-15 21:25:57,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:25:57,689 INFO L225 Difference]: With dead ends: 77 [2022-10-15 21:25:57,689 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 21:25:57,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:25:57,692 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 44 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:25:57,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 107 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:25:57,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 21:25:57,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 33. [2022-10-15 21:25:57,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.44) internal successors, (36), 32 states have internal predecessors, (36), 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) [2022-10-15 21:25:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-10-15 21:25:57,704 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 7 [2022-10-15 21:25:57,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:25:57,705 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-10-15 21:25:57,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-10-15 21:25:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-10-15 21:25:57,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 21:25:57,706 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:25:57,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:25:57,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:25:57,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:25:57,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:25:57,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1561360106, now seen corresponding path program 1 times [2022-10-15 21:25:57,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:25:57,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559247729] [2022-10-15 21:25:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:57,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:25:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:25:57,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:25:57,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559247729] [2022-10-15 21:25:57,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559247729] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:25:57,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:25:57,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:25:57,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057830784] [2022-10-15 21:25:57,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:25:57,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:25:57,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:25:57,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:25:57,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:25:57,936 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-10-15 21:25:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:25:58,064 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2022-10-15 21:25:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:25:58,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2022-10-15 21:25:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:25:58,066 INFO L225 Difference]: With dead ends: 82 [2022-10-15 21:25:58,066 INFO L226 Difference]: Without dead ends: 55 [2022-10-15 21:25:58,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:25:58,073 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:25:58,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 104 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:25:58,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-15 21:25:58,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 37. [2022-10-15 21:25:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 36 states have internal predecessors, (41), 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) [2022-10-15 21:25:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-10-15 21:25:58,094 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 12 [2022-10-15 21:25:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:25:58,095 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-10-15 21:25:58,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-10-15 21:25:58,097 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-10-15 21:25:58,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 21:25:58,098 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:25:58,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:25:58,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:25:58,099 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:25:58,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:25:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1561300524, now seen corresponding path program 1 times [2022-10-15 21:25:58,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:25:58,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738063272] [2022-10-15 21:25:58,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:58,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:25:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:25:58,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:25:58,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738063272] [2022-10-15 21:25:58,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738063272] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:25:58,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:25:58,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:25:58,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826800893] [2022-10-15 21:25:58,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:25:58,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:25:58,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:25:58,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:25:58,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:25:58,269 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-10-15 21:25:58,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:25:58,310 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-10-15 21:25:58,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:25:58,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 [2022-10-15 21:25:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:25:58,313 INFO L225 Difference]: With dead ends: 46 [2022-10-15 21:25:58,313 INFO L226 Difference]: Without dead ends: 44 [2022-10-15 21:25:58,314 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 [2022-10-15 21:25:58,316 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:25:58,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 78 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:25:58,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-15 21:25:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-15 21:25:58,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 43 states have internal predecessors, (48), 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) [2022-10-15 21:25:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-10-15 21:25:58,335 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 12 [2022-10-15 21:25:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:25:58,335 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-10-15 21:25:58,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-10-15 21:25:58,336 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-10-15 21:25:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 21:25:58,340 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:25:58,340 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:25:58,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:25:58,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:25:58,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:25:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash -172018475, now seen corresponding path program 1 times [2022-10-15 21:25:58,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:25:58,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388677913] [2022-10-15 21:25:58,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:58,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:25:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:25:58,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:25:58,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388677913] [2022-10-15 21:25:58,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388677913] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:25:58,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:25:58,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:25:58,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856937766] [2022-10-15 21:25:58,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:25:58,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:25:58,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:25:58,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:25:58,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:25:58,549 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-10-15 21:25:58,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:25:58,626 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2022-10-15 21:25:58,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:25:58,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-10-15 21:25:58,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:25:58,629 INFO L225 Difference]: With dead ends: 75 [2022-10-15 21:25:58,629 INFO L226 Difference]: Without dead ends: 73 [2022-10-15 21:25:58,630 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 [2022-10-15 21:25:58,632 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:25:58,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 76 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:25:58,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-15 21:25:58,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 48. [2022-10-15 21:25:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.325) internal successors, (53), 47 states have internal predecessors, (53), 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) [2022-10-15 21:25:58,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-10-15 21:25:58,644 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2022-10-15 21:25:58,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:25:58,645 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-10-15 21:25:58,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-10-15 21:25:58,645 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-10-15 21:25:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 21:25:58,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:25:58,646 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:25:58,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:25:58,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:25:58,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:25:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1037656821, now seen corresponding path program 1 times [2022-10-15 21:25:58,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:25:58,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593552720] [2022-10-15 21:25:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:58,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:25:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:25:58,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:25:58,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593552720] [2022-10-15 21:25:58,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593552720] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:25:58,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552060241] [2022-10-15 21:25:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:58,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:25:58,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:25:58,850 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) [2022-10-15 21:25:58,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:25:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:58,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 21:25:58,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:25:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:25:59,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:25:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:25:59,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552060241] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:25:59,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:25:59,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-15 21:25:59,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994288929] [2022-10-15 21:25:59,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:25:59,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 21:25:59,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:25:59,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 21:25:59,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:25:59,155 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 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) [2022-10-15 21:25:59,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:25:59,296 INFO L93 Difference]: Finished difference Result 82 states and 93 transitions. [2022-10-15 21:25:59,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:25:59,297 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 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) Word has length 18 [2022-10-15 21:25:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:25:59,300 INFO L225 Difference]: With dead ends: 82 [2022-10-15 21:25:59,300 INFO L226 Difference]: Without dead ends: 47 [2022-10-15 21:25:59,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:25:59,306 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 48 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:25:59,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 136 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:25:59,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-15 21:25:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2022-10-15 21:25:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 45 states have internal predecessors, (50), 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) [2022-10-15 21:25:59,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-10-15 21:25:59,317 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 18 [2022-10-15 21:25:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:25:59,317 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-10-15 21:25:59,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 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) [2022-10-15 21:25:59,318 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-10-15 21:25:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 21:25:59,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:25:59,319 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:25:59,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:25:59,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 21:25:59,535 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:25:59,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:25:59,537 INFO L85 PathProgramCache]: Analyzing trace with hash -422049583, now seen corresponding path program 1 times [2022-10-15 21:25:59,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:25:59,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209831243] [2022-10-15 21:25:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:59,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:25:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:25:59,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:25:59,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209831243] [2022-10-15 21:25:59,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209831243] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:25:59,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898465593] [2022-10-15 21:25:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:25:59,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:25:59,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:25:59,699 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) [2022-10-15 21:25:59,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:25:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:25:59,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-15 21:25:59,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:25:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:25:59,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:00,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898465593] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:00,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:00,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 15 [2022-10-15 21:26:00,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128981956] [2022-10-15 21:26:00,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:00,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 21:26:00,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:00,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 21:26:00,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-10-15 21:26:00,121 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 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) [2022-10-15 21:26:00,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:00,462 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2022-10-15 21:26:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 21:26:00,463 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 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 21 [2022-10-15 21:26:00,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:00,464 INFO L225 Difference]: With dead ends: 140 [2022-10-15 21:26:00,464 INFO L226 Difference]: Without dead ends: 106 [2022-10-15 21:26:00,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2022-10-15 21:26:00,466 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 197 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:00,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 219 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:26:00,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-15 21:26:00,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 56. [2022-10-15 21:26:00,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 55 states have internal predecessors, (61), 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) [2022-10-15 21:26:00,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2022-10-15 21:26:00,478 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 21 [2022-10-15 21:26:00,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:00,479 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2022-10-15 21:26:00,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 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) [2022-10-15 21:26:00,479 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2022-10-15 21:26:00,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 21:26:00,480 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:00,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:00,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-15 21:26:00,688 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,SelfDestructingSolverStorable6 [2022-10-15 21:26:00,689 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:00,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:00,690 INFO L85 PathProgramCache]: Analyzing trace with hash -198686577, now seen corresponding path program 1 times [2022-10-15 21:26:00,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:00,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106567447] [2022-10-15 21:26:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:00,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:01,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:01,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106567447] [2022-10-15 21:26:01,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106567447] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:01,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794878547] [2022-10-15 21:26:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:01,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:01,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:01,559 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) [2022-10-15 21:26:01,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:26:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:01,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-15 21:26:01,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:01,735 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 11 treesize of output 7 [2022-10-15 21:26:01,813 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-10-15 21:26:01,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2022-10-15 21:26:01,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-10-15 21:26:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:01,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:02,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 14 treesize of output 12 [2022-10-15 21:26:02,129 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 22 treesize of output 20 [2022-10-15 21:26:02,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:02,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794878547] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:02,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:02,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 21 [2022-10-15 21:26:02,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295103615] [2022-10-15 21:26:02,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:02,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-15 21:26:02,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:02,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-15 21:26:02,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-10-15 21:26:02,155 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 22 states have internal predecessors, (52), 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) [2022-10-15 21:26:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:02,891 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions. [2022-10-15 21:26:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-15 21:26:02,892 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 22 states have internal predecessors, (52), 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 22 [2022-10-15 21:26:02,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:02,893 INFO L225 Difference]: With dead ends: 129 [2022-10-15 21:26:02,894 INFO L226 Difference]: Without dead ends: 127 [2022-10-15 21:26:02,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=1185, Unknown=0, NotChecked=0, Total=1406 [2022-10-15 21:26:02,896 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 192 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:02,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 316 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 314 Invalid, 0 Unknown, 41 Unchecked, 0.3s Time] [2022-10-15 21:26:02,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-10-15 21:26:02,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 85. [2022-10-15 21:26:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 84 states have internal predecessors, (100), 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) [2022-10-15 21:26:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2022-10-15 21:26:02,915 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 22 [2022-10-15 21:26:02,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:02,915 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2022-10-15 21:26:02,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 22 states have internal predecessors, (52), 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) [2022-10-15 21:26:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2022-10-15 21:26:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 21:26:02,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:02,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:02,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:03,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:03,131 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:03,132 INFO L85 PathProgramCache]: Analyzing trace with hash -606811943, now seen corresponding path program 1 times [2022-10-15 21:26:03,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:03,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534927020] [2022-10-15 21:26:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:03,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 21:26:03,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:03,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534927020] [2022-10-15 21:26:03,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534927020] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:03,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:03,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:26:03,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949781787] [2022-10-15 21:26:03,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:03,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:03,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:26:03,233 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) [2022-10-15 21:26:03,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:03,277 INFO L93 Difference]: Finished difference Result 129 states and 151 transitions. [2022-10-15 21:26:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:03,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) Word has length 25 [2022-10-15 21:26:03,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:03,279 INFO L225 Difference]: With dead ends: 129 [2022-10-15 21:26:03,279 INFO L226 Difference]: Without dead ends: 127 [2022-10-15 21:26:03,280 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 [2022-10-15 21:26:03,282 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 22 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 84 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 [2022-10-15 21:26:03,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 84 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:03,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-10-15 21:26:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 94. [2022-10-15 21:26:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 93 states have internal predecessors, (112), 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) [2022-10-15 21:26:03,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2022-10-15 21:26:03,318 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 25 [2022-10-15 21:26:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:03,320 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2022-10-15 21:26:03,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) [2022-10-15 21:26:03,322 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2022-10-15 21:26:03,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 21:26:03,323 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:03,323 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:03,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:26:03,324 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:03,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:03,324 INFO L85 PathProgramCache]: Analyzing trace with hash -450636071, now seen corresponding path program 1 times [2022-10-15 21:26:03,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:03,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820164020] [2022-10-15 21:26:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:03,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:03,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:03,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:03,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820164020] [2022-10-15 21:26:03,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820164020] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:03,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816705894] [2022-10-15 21:26:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:03,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:03,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:03,523 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) [2022-10-15 21:26:03,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:26:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:03,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-15 21:26:03,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:03,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:03,742 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:03,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816705894] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:03,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:03,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2022-10-15 21:26:03,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237554224] [2022-10-15 21:26:03,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:03,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 21:26:03,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:03,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 21:26:03,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:26:03,746 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 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) [2022-10-15 21:26:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:04,080 INFO L93 Difference]: Finished difference Result 181 states and 217 transitions. [2022-10-15 21:26:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 21:26:04,081 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 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 27 [2022-10-15 21:26:04,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:04,082 INFO L225 Difference]: With dead ends: 181 [2022-10-15 21:26:04,083 INFO L226 Difference]: Without dead ends: 110 [2022-10-15 21:26:04,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2022-10-15 21:26:04,084 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 195 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:04,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 198 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:26:04,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-15 21:26:04,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 103. [2022-10-15 21:26:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 102 states have internal predecessors, (124), 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) [2022-10-15 21:26:04,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 124 transitions. [2022-10-15 21:26:04,101 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 124 transitions. Word has length 27 [2022-10-15 21:26:04,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:04,101 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 124 transitions. [2022-10-15 21:26:04,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 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) [2022-10-15 21:26:04,101 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 124 transitions. [2022-10-15 21:26:04,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 21:26:04,102 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:04,103 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:04,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:04,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:04,318 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:04,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:04,319 INFO L85 PathProgramCache]: Analyzing trace with hash -17169899, now seen corresponding path program 1 times [2022-10-15 21:26:04,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:04,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64149723] [2022-10-15 21:26:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:04,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:04,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:04,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64149723] [2022-10-15 21:26:04,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64149723] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:04,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294617771] [2022-10-15 21:26:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:04,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:04,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:04,515 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:04,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:26:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:04,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:26:04,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:04,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:04,795 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:04,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294617771] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:04,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:04,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-15 21:26:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490412202] [2022-10-15 21:26:04,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:04,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 21:26:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:04,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 21:26:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-10-15 21:26:04,798 INFO L87 Difference]: Start difference. First operand 103 states and 124 transitions. Second operand has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 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) [2022-10-15 21:26:05,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:05,016 INFO L93 Difference]: Finished difference Result 192 states and 232 transitions. [2022-10-15 21:26:05,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 21:26:05,017 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 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 28 [2022-10-15 21:26:05,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:05,020 INFO L225 Difference]: With dead ends: 192 [2022-10-15 21:26:05,020 INFO L226 Difference]: Without dead ends: 115 [2022-10-15 21:26:05,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2022-10-15 21:26:05,024 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 142 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:05,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 219 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:26:05,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-15 21:26:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 98. [2022-10-15 21:26:05,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 97 states have internal predecessors, (114), 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) [2022-10-15 21:26:05,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 114 transitions. [2022-10-15 21:26:05,043 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 114 transitions. Word has length 28 [2022-10-15 21:26:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:05,043 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 114 transitions. [2022-10-15 21:26:05,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 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) [2022-10-15 21:26:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 114 transitions. [2022-10-15 21:26:05,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-15 21:26:05,046 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:05,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:05,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:05,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 21:26:05,262 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:05,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:05,263 INFO L85 PathProgramCache]: Analyzing trace with hash 110979782, now seen corresponding path program 1 times [2022-10-15 21:26:05,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:05,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252365159] [2022-10-15 21:26:05,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:05,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:05,378 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 21:26:05,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:05,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252365159] [2022-10-15 21:26:05,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252365159] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:05,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775937888] [2022-10-15 21:26:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:05,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:05,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:05,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:05,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:26:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:05,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:26:05,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 21:26:05,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:05,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775937888] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:05,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:05,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 21:26:05,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680279500] [2022-10-15 21:26:05,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:05,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:26:05,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:05,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:26:05,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:26:05,518 INFO L87 Difference]: Start difference. First operand 98 states and 114 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2022-10-15 21:26:05,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:05,572 INFO L93 Difference]: Finished difference Result 98 states and 114 transitions. [2022-10-15 21:26:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:26:05,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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 43 [2022-10-15 21:26:05,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:05,583 INFO L225 Difference]: With dead ends: 98 [2022-10-15 21:26:05,583 INFO L226 Difference]: Without dead ends: 97 [2022-10-15 21:26:05,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:26:05,585 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 51 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:05,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 103 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:05,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-15 21:26:05,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-10-15 21:26:05,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 96 states have internal predecessors, (113), 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) [2022-10-15 21:26:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 113 transitions. [2022-10-15 21:26:05,613 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 113 transitions. Word has length 43 [2022-10-15 21:26:05,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:05,616 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 113 transitions. [2022-10-15 21:26:05,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2022-10-15 21:26:05,616 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 113 transitions. [2022-10-15 21:26:05,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 21:26:05,620 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:05,620 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:05,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:05,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:05,835 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:05,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash -856188810, now seen corresponding path program 1 times [2022-10-15 21:26:05,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:05,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795543018] [2022-10-15 21:26:05,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:05,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:26:06,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:06,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795543018] [2022-10-15 21:26:06,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795543018] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:06,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243049583] [2022-10-15 21:26:06,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:06,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:06,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:06,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:06,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:26:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:06,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:26:06,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:06,399 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:26:06,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:26:06,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243049583] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:06,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:06,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 18 [2022-10-15 21:26:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950718683] [2022-10-15 21:26:06,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:06,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 21:26:06,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:06,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 21:26:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-10-15 21:26:06,518 INFO L87 Difference]: Start difference. First operand 97 states and 113 transitions. Second operand has 18 states, 18 states have (on average 4.666666666666667) internal successors, (84), 18 states have internal predecessors, (84), 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) [2022-10-15 21:26:06,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:06,833 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2022-10-15 21:26:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 21:26:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.666666666666667) internal successors, (84), 18 states have internal predecessors, (84), 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 44 [2022-10-15 21:26:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:06,835 INFO L225 Difference]: With dead ends: 143 [2022-10-15 21:26:06,835 INFO L226 Difference]: Without dead ends: 79 [2022-10-15 21:26:06,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=560, Unknown=0, NotChecked=0, Total=702 [2022-10-15 21:26:06,837 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 87 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:06,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 263 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:26:06,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-15 21:26:06,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 71. [2022-10-15 21:26:06,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 70 states have internal predecessors, (77), 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) [2022-10-15 21:26:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2022-10-15 21:26:06,853 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 44 [2022-10-15 21:26:06,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:06,854 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2022-10-15 21:26:06,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.666666666666667) internal successors, (84), 18 states have internal predecessors, (84), 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) [2022-10-15 21:26:06,854 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2022-10-15 21:26:06,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 21:26:06,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:06,855 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:06,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:07,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:07,069 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:07,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash -926084628, now seen corresponding path program 1 times [2022-10-15 21:26:07,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:07,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112739434] [2022-10-15 21:26:07,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:07,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 35 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:26:07,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:07,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112739434] [2022-10-15 21:26:07,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112739434] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:07,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955067941] [2022-10-15 21:26:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:07,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:07,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:07,403 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:07,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 21:26:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:07,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-15 21:26:07,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:26:07,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:07,851 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:26:07,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955067941] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:07,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:07,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 22 [2022-10-15 21:26:07,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474430688] [2022-10-15 21:26:07,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:07,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-15 21:26:07,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:07,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-15 21:26:07,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2022-10-15 21:26:07,855 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand has 22 states, 22 states have (on average 4.090909090909091) internal successors, (90), 22 states have internal predecessors, (90), 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) [2022-10-15 21:26:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:08,316 INFO L93 Difference]: Finished difference Result 146 states and 162 transitions. [2022-10-15 21:26:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-15 21:26:08,317 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.090909090909091) internal successors, (90), 22 states have internal predecessors, (90), 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 46 [2022-10-15 21:26:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:08,318 INFO L225 Difference]: With dead ends: 146 [2022-10-15 21:26:08,318 INFO L226 Difference]: Without dead ends: 108 [2022-10-15 21:26:08,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 75 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 21:26:08,320 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 216 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:08,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 406 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:26:08,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-15 21:26:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 82. [2022-10-15 21:26:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 81 states have internal predecessors, (88), 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) [2022-10-15 21:26:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2022-10-15 21:26:08,333 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 46 [2022-10-15 21:26:08,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:08,333 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2022-10-15 21:26:08,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.090909090909091) internal successors, (90), 22 states have internal predecessors, (90), 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) [2022-10-15 21:26:08,334 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2022-10-15 21:26:08,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 21:26:08,334 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:08,334 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:08,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:08,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 21:26:08,549 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:08,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:08,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1356096212, now seen corresponding path program 1 times [2022-10-15 21:26:08,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:08,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618551671] [2022-10-15 21:26:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:08,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:26:09,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618551671] [2022-10-15 21:26:09,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618551671] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609343263] [2022-10-15 21:26:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:09,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:09,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:09,703 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:09,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 21:26:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:09,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-15 21:26:09,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:09,852 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 11 treesize of output 7 [2022-10-15 21:26:09,912 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-10-15 21:26:09,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 18 [2022-10-15 21:26:10,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-10-15 21:26:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:26:10,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:20,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 14 treesize of output 12 [2022-10-15 21:26:20,743 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 22 treesize of output 20 [2022-10-15 21:26:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:26:20,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609343263] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:20,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:20,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 31 [2022-10-15 21:26:20,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129723985] [2022-10-15 21:26:20,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:20,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-15 21:26:20,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:20,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-15 21:26:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=825, Unknown=2, NotChecked=0, Total=930 [2022-10-15 21:26:20,840 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 states have internal predecessors, (84), 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) [2022-10-15 21:26:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:21,565 INFO L93 Difference]: Finished difference Result 142 states and 151 transitions. [2022-10-15 21:26:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-15 21:26:21,566 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 states have internal predecessors, (84), 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 47 [2022-10-15 21:26:21,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:21,567 INFO L225 Difference]: With dead ends: 142 [2022-10-15 21:26:21,567 INFO L226 Difference]: Without dead ends: 90 [2022-10-15 21:26:21,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=332, Invalid=1828, Unknown=2, NotChecked=0, Total=2162 [2022-10-15 21:26:21,569 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 147 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:21,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 277 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 311 Invalid, 0 Unknown, 37 Unchecked, 0.2s Time] [2022-10-15 21:26:21,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-15 21:26:21,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2022-10-15 21:26:21,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 76 states have (on average 1.144736842105263) internal successors, (87), 81 states have internal predecessors, (87), 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) [2022-10-15 21:26:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2022-10-15 21:26:21,583 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 47 [2022-10-15 21:26:21,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:21,583 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2022-10-15 21:26:21,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 states have internal predecessors, (84), 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) [2022-10-15 21:26:21,584 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2022-10-15 21:26:21,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 21:26:21,584 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:21,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:21,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:21,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-15 21:26:21,799 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 21:26:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:21,800 INFO L85 PathProgramCache]: Analyzing trace with hash -638048494, now seen corresponding path program 2 times [2022-10-15 21:26:21,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:21,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226345150] [2022-10-15 21:26:21,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:21,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:23,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:23,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226345150] [2022-10-15 21:26:23,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226345150] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:23,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290838493] [2022-10-15 21:26:23,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:26:23,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:23,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:23,288 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:23,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 21:26:23,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:26:23,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:26:23,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 81 conjunts are in the unsatisfiable core [2022-10-15 21:26:23,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:23,501 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 [2022-10-15 21:26:23,665 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-10-15 21:26:23,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-10-15 21:26:24,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:26:24,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:26:24,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-15 21:26:24,299 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-10-15 21:26:24,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 31 [2022-10-15 21:26:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:26:24,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:26:24,571 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-10-15 21:26:24,606 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:24,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:26,818 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_foo_~i~1#1_41| Int)) (or (forall ((v_ArrVal_380 Int)) (< (select (store (select |c_#memory_int| |c_ULTIMATE.start_foo_~#a~0#1.base|) (+ |c_ULTIMATE.start_foo_~#a~0#1.offset| (* |v_ULTIMATE.start_foo_~i~1#1_41| 4)) v_ArrVal_380) |c_ULTIMATE.start_foo_~#a~0#1.offset|) 2147483648)) (not (<= (+ |c_ULTIMATE.start_foo_#t~post2#1| 1) |v_ULTIMATE.start_foo_~i~1#1_41|)))) is different from false [2022-10-15 21:26:56,922 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_377 Int) (v_ArrVal_375 Int) (|ULTIMATE.start_foo_~#a~0#1.base| Int) (|v_ULTIMATE.start_foo_~i~1#1_41| Int) (|v_ULTIMATE.start_foo_~#a~0#1.base_29| Int) (v_ArrVal_380 Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_foo_~#a~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_foo_~#a~0#1.base|) 0 0)))) (let ((.cse0 (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| (* |c_ULTIMATE.start_main_~i~2#1| 4)) v_ArrVal_375))) (or (not (<= v_ArrVal_377 (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.offset|))) (< |v_ULTIMATE.start_foo_~i~1#1_41| 1) (< (select (store (store (select (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| .cse0) |v_ULTIMATE.start_foo_~#a~0#1.base_29|) 0 v_ArrVal_377) (* |v_ULTIMATE.start_foo_~i~1#1_41| 4) v_ArrVal_380) 0) 2147483648))))) is different from false [2022-10-15 21:26:58,953 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~2#1_34| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~2#1_34|)) (forall ((v_ArrVal_377 Int) (v_ArrVal_375 Int) (|ULTIMATE.start_foo_~#a~0#1.base| Int) (|v_ULTIMATE.start_foo_~i~1#1_41| Int) (|v_ULTIMATE.start_foo_~#a~0#1.base_29| Int) (v_ArrVal_380 Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_foo_~#a~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_foo_~#a~0#1.base|) 0 0)))) (let ((.cse0 (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| (* |v_ULTIMATE.start_main_~i~2#1_34| 4)) v_ArrVal_375))) (or (not (<= v_ArrVal_377 (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.offset|))) (< (select (store (store (select (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| .cse0) |v_ULTIMATE.start_foo_~#a~0#1.base_29|) 0 v_ArrVal_377) (* |v_ULTIMATE.start_foo_~i~1#1_41| 4) v_ArrVal_380) 0) 2147483648) (< |v_ULTIMATE.start_foo_~i~1#1_41| 1))))))) is different from false