/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/loops-crafted-1/loopv2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:42:28,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:42:28,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:42:28,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:42:28,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:42:28,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:42:28,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:42:28,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:42:28,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:42:28,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:42:28,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:42:28,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:42:28,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:42:28,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:42:28,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:42:28,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:42:28,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:42:28,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:42:28,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:42:28,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:42:28,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:42:28,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:42:28,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:42:28,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:42:28,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:42:28,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:42:28,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:42:28,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:42:28,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:42:28,633 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:42:28,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:42:28,634 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:42:28,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:42:28,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:42:28,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:42:28,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:42:28,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:42:28,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:42:28,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:42:28,636 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:42:28,636 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:42:28,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:42:28,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:42:28,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:42:28,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:42:28,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:42:28,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:42:28,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:42:28,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:42:28,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:42:28,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:42:28,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:42:28,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:42:28,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:42:28,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:42:29,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:42:29,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:42:29,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:42:29,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:42:29,085 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:42:29,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/loopv2.c [2022-10-16 14:42:29,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6728936b8/e33a785b743844319099003eb16424ec/FLAGffdeabe10 [2022-10-16 14:42:29,728 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:42:29,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/loopv2.c [2022-10-16 14:42:29,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6728936b8/e33a785b743844319099003eb16424ec/FLAGffdeabe10 [2022-10-16 14:42:30,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6728936b8/e33a785b743844319099003eb16424ec [2022-10-16 14:42:30,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:42:30,105 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:42:30,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:42:30,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:42:30,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:42:30,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e286db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30, skipping insertion in model container [2022-10-16 14:42:30,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:42:30,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:42:30,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/loopv2.c[454,467] [2022-10-16 14:42:30,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:42:30,334 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:42:30,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/loopv2.c[454,467] [2022-10-16 14:42:30,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:42:30,369 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:42:30,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30 WrapperNode [2022-10-16 14:42:30,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:42:30,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:42:30,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:42:30,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:42:30,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,409 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2022-10-16 14:42:30,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:42:30,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:42:30,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:42:30,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:42:30,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:42:30,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:42:30,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:42:30,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:42:30,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (1/1) ... [2022-10-16 14:42:30,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:42:30,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:30,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:42:30,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:42:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:42:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:42:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:42:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:42:30,637 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:42:30,639 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:42:30,903 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:42:30,913 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:42:30,913 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:42:30,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:30 BoogieIcfgContainer [2022-10-16 14:42:30,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:42:30,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:42:30,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:42:30,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:42:30,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:42:30" (1/3) ... [2022-10-16 14:42:30,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2535ae4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:42:30, skipping insertion in model container [2022-10-16 14:42:30,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:30" (2/3) ... [2022-10-16 14:42:30,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2535ae4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:42:30, skipping insertion in model container [2022-10-16 14:42:30,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:30" (3/3) ... [2022-10-16 14:42:30,929 INFO L112 eAbstractionObserver]: Analyzing ICFG loopv2.c [2022-10-16 14:42:30,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:42:30,956 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 14:42:31,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:42:31,044 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;@5712b932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:42:31,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 14:42:31,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.7) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:42:31,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:31,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:42:31,060 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)] === [2022-10-16 14:42:31,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:31,067 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-10-16 14:42:31,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:31,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263717493] [2022-10-16 14:42:31,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:31,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:31,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:31,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263717493] [2022-10-16 14:42:31,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263717493] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:31,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:31,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:42:31,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13165532] [2022-10-16 14:42:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:31,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:42:31,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:31,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:42:31,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:31,492 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.7) internal successors, (34), 28 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:31,595 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2022-10-16 14:42:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:42:31,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-10-16 14:42:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:31,610 INFO L225 Difference]: With dead ends: 68 [2022-10-16 14:42:31,610 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 14:42:31,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:31,624 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 19 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:31,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:31,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 14:42:31,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 25. [2022-10-16 14:42:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.588235294117647) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-10-16 14:42:31,674 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 5 [2022-10-16 14:42:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:31,675 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-10-16 14:42:31,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:31,675 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-10-16 14:42:31,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:42:31,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:31,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:31,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:42:31,677 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)] === [2022-10-16 14:42:31,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-10-16 14:42:31,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:31,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97997618] [2022-10-16 14:42:31,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:31,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:31,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:31,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97997618] [2022-10-16 14:42:31,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97997618] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:31,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:31,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:42:31,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746058512] [2022-10-16 14:42:31,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:31,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:42:31,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:31,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:42:31,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:31,763 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-10-16 14:42:31,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:31,849 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2022-10-16 14:42:31,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:42:31,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-10-16 14:42:31,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:31,853 INFO L225 Difference]: With dead ends: 52 [2022-10-16 14:42:31,853 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 14:42:31,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:31,859 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 41 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:31,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 33 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:31,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 14:42:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 29. [2022-10-16 14:42:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 28 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) [2022-10-16 14:42:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-10-16 14:42:31,877 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 7 [2022-10-16 14:42:31,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:31,878 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-10-16 14:42:31,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-10-16 14:42:31,878 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-10-16 14:42:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:42:31,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:31,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:31,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:42:31,880 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1806978451, now seen corresponding path program 1 times [2022-10-16 14:42:31,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:31,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955283474] [2022-10-16 14:42:31,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:31,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:31,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:31,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955283474] [2022-10-16 14:42:31,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955283474] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:31,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:31,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:42:31,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615142661] [2022-10-16 14:42:31,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:31,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:42:31,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:31,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:42:31,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:31,977 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-10-16 14:42:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:32,006 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-10-16 14:42:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:42:32,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-10-16 14:42:32,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:32,009 INFO L225 Difference]: With dead ends: 36 [2022-10-16 14:42:32,010 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 14:42:32,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:32,013 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:32,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:32,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 14:42:32,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-10-16 14:42:32,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-10-16 14:42:32,029 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 7 [2022-10-16 14:42:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:32,030 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-10-16 14:42:32,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-10-16 14:42:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-10-16 14:42:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:42:32,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:32,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:32,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:42:32,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:32,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:32,035 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-10-16 14:42:32,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:32,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930234380] [2022-10-16 14:42:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:32,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:32,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:32,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930234380] [2022-10-16 14:42:32,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930234380] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:32,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:32,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:42:32,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890697650] [2022-10-16 14:42:32,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:32,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:42:32,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:32,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:42:32,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:32,122 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:32,154 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-10-16 14:42:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:42:32,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 14:42:32,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:32,156 INFO L225 Difference]: With dead ends: 42 [2022-10-16 14:42:32,156 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 14:42:32,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:32,158 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 27 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:32,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 41 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:32,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 14:42:32,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2022-10-16 14:42:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.36) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-10-16 14:42:32,165 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 8 [2022-10-16 14:42:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:32,165 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-10-16 14:42:32,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-10-16 14:42:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:42:32,166 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:32,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:32,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:42:32,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:32,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:32,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1339506101, now seen corresponding path program 1 times [2022-10-16 14:42:32,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:32,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944111523] [2022-10-16 14:42:32,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:32,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:32,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:32,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944111523] [2022-10-16 14:42:32,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944111523] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:32,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:32,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:42:32,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104984970] [2022-10-16 14:42:32,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:32,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:42:32,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:32,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:42:32,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:32,255 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:32,295 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2022-10-16 14:42:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:42:32,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:42:32,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:32,297 INFO L225 Difference]: With dead ends: 44 [2022-10-16 14:42:32,297 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 14:42:32,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:42:32,299 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:32,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 44 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:32,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 14:42:32,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2022-10-16 14:42:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.3333333333333333) 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) [2022-10-16 14:42:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-10-16 14:42:32,306 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 9 [2022-10-16 14:42:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:32,307 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-10-16 14:42:32,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,307 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-10-16 14:42:32,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:42:32,308 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:32,308 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:32,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:42:32,308 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)] === [2022-10-16 14:42:32,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:32,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1588880781, now seen corresponding path program 1 times [2022-10-16 14:42:32,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:32,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641688251] [2022-10-16 14:42:32,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:32,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:32,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:32,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641688251] [2022-10-16 14:42:32,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641688251] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:32,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204641250] [2022-10-16 14:42:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:32,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:32,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:32,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:32,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:42:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:32,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:42:32,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:32,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:32,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204641250] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:32,569 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:32,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-16 14:42:32,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741441815] [2022-10-16 14:42:32,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:32,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:42:32,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:32,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:42:32,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:42:32,572 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:32,651 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2022-10-16 14:42:32,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:42:32,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:42:32,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:32,653 INFO L225 Difference]: With dead ends: 101 [2022-10-16 14:42:32,653 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 14:42:32,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:42:32,655 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 145 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:32,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 74 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 14:42:32,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 50. [2022-10-16 14:42:32,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2022-10-16 14:42:32,666 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 12 [2022-10-16 14:42:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:32,666 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2022-10-16 14:42:32,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2022-10-16 14:42:32,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:42:32,667 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:32,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:32,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:42:32,882 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 [2022-10-16 14:42:32,883 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:32,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:32,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1588930209, now seen corresponding path program 1 times [2022-10-16 14:42:32,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:32,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886494632] [2022-10-16 14:42:32,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:32,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:32,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:32,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:32,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886494632] [2022-10-16 14:42:32,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886494632] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:32,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:32,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:42:32,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451810950] [2022-10-16 14:42:32,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:32,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:42:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:32,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:42:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:32,946 INFO L87 Difference]: Start difference. First operand 50 states and 56 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) [2022-10-16 14:42:32,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:32,980 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2022-10-16 14:42:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:42:32,980 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 [2022-10-16 14:42:32,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:32,982 INFO L225 Difference]: With dead ends: 50 [2022-10-16 14:42:32,985 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 14:42:32,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:42:32,987 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:32,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:32,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 14:42:33,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-10-16 14:42:33,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.25) internal successors, (55), 48 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) [2022-10-16 14:42:33,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-10-16 14:42:33,006 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 12 [2022-10-16 14:42:33,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:33,006 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-10-16 14:42:33,010 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) [2022-10-16 14:42:33,010 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-10-16 14:42:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:42:33,011 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:33,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:33,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:42:33,011 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:33,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2012196152, now seen corresponding path program 1 times [2022-10-16 14:42:33,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:33,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340959316] [2022-10-16 14:42:33,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:33,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:33,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:33,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340959316] [2022-10-16 14:42:33,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340959316] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:33,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850332674] [2022-10-16 14:42:33,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:33,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:33,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:33,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:33,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:42:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:33,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:42:33,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:33,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:33,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:33,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850332674] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:33,301 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:33,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 12 [2022-10-16 14:42:33,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708341188] [2022-10-16 14:42:33,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:33,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:42:33,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:42:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:42:33,304 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:33,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:33,456 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2022-10-16 14:42:33,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:42:33,457 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:42:33,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:33,458 INFO L225 Difference]: With dead ends: 68 [2022-10-16 14:42:33,458 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 14:42:33,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:42:33,460 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 84 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:33,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 59 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 14:42:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 57. [2022-10-16 14:42:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.25) internal successors, (65), 56 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:33,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2022-10-16 14:42:33,471 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 13 [2022-10-16 14:42:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:33,472 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2022-10-16 14:42:33,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:33,472 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2022-10-16 14:42:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:42:33,473 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:33,473 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:33,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 14:42:33,686 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,SelfDestructingSolverStorable7 [2022-10-16 14:42:33,688 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:33,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:33,690 INFO L85 PathProgramCache]: Analyzing trace with hash -234195153, now seen corresponding path program 1 times [2022-10-16 14:42:33,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:33,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515509895] [2022-10-16 14:42:33,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:33,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:33,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:33,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515509895] [2022-10-16 14:42:33,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515509895] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:33,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700718409] [2022-10-16 14:42:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:33,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:33,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:33,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:33,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:42:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:33,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:42:33,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:33,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:33,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700718409] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:33,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:33,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 14:42:33,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990625163] [2022-10-16 14:42:33,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:33,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:42:33,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:33,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:42:33,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:42:33,833 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:33,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:33,868 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2022-10-16 14:42:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:42:33,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:42:33,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:33,869 INFO L225 Difference]: With dead ends: 75 [2022-10-16 14:42:33,869 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 14:42:33,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:42:33,871 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:33,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 14:42:33,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2022-10-16 14:42:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.263157894736842) internal successors, (72), 61 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-10-16 14:42:33,884 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 13 [2022-10-16 14:42:33,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:33,884 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-10-16 14:42:33,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-10-16 14:42:33,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:42:33,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:33,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:33,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:34,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:34,100 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)] === [2022-10-16 14:42:34,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:34,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2046428801, now seen corresponding path program 1 times [2022-10-16 14:42:34,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:34,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534908746] [2022-10-16 14:42:34,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:34,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:34,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:34,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:34,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534908746] [2022-10-16 14:42:34,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534908746] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:34,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:34,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:42:34,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920281571] [2022-10-16 14:42:34,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:34,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:42:34,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:34,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:42:34,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:34,170 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:34,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:34,200 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2022-10-16 14:42:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:42:34,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-10-16 14:42:34,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:34,202 INFO L225 Difference]: With dead ends: 62 [2022-10-16 14:42:34,202 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:42:34,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:42:34,203 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:34,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 14 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:34,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:42:34,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 14:42:34,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 60 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2022-10-16 14:42:34,213 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 14 [2022-10-16 14:42:34,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:34,214 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2022-10-16 14:42:34,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2022-10-16 14:42:34,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:42:34,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:34,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:34,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:42:34,216 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:34,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:34,216 INFO L85 PathProgramCache]: Analyzing trace with hash -985216534, now seen corresponding path program 1 times [2022-10-16 14:42:34,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:34,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146803015] [2022-10-16 14:42:34,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:34,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:34,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:34,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146803015] [2022-10-16 14:42:34,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146803015] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:34,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768256436] [2022-10-16 14:42:34,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:34,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:34,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:34,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:34,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:42:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:34,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:42:34,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:34,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:34,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:42:34,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768256436] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:34,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:42:34,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2022-10-16 14:42:34,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037780079] [2022-10-16 14:42:34,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:34,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:42:34,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:34,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:42:34,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:42:34,361 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:34,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:34,413 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2022-10-16 14:42:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:42:34,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2022-10-16 14:42:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:34,416 INFO L225 Difference]: With dead ends: 77 [2022-10-16 14:42:34,416 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 14:42:34,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:42:34,419 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 27 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:34,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 32 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:34,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 14:42:34,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2022-10-16 14:42:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 65 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:34,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2022-10-16 14:42:34,432 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 15 [2022-10-16 14:42:34,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:34,432 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2022-10-16 14:42:34,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:34,433 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2022-10-16 14:42:34,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:42:34,433 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:34,433 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:34,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:34,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:34,648 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:34,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:34,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1723240303, now seen corresponding path program 1 times [2022-10-16 14:42:34,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:34,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410847878] [2022-10-16 14:42:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:34,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:34,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:34,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410847878] [2022-10-16 14:42:34,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410847878] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:34,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809302625] [2022-10-16 14:42:34,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:34,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:34,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:34,706 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) [2022-10-16 14:42:34,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:42:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:34,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:42:34,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:34,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:34,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:34,834 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:34,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809302625] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:34,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:34,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-16 14:42:34,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534123869] [2022-10-16 14:42:34,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:34,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:42:34,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:34,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:42:34,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:42:34,837 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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) [2022-10-16 14:42:34,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:34,984 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2022-10-16 14:42:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:42:34,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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) Word has length 15 [2022-10-16 14:42:34,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:34,985 INFO L225 Difference]: With dead ends: 93 [2022-10-16 14:42:34,985 INFO L226 Difference]: Without dead ends: 92 [2022-10-16 14:42:34,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=197, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:42:34,987 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 60 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:34,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 51 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:34,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-10-16 14:42:35,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 81. [2022-10-16 14:42:35,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 77 states have (on average 1.155844155844156) internal successors, (89), 80 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:35,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2022-10-16 14:42:35,014 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 15 [2022-10-16 14:42:35,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:35,015 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2022-10-16 14:42:35,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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) [2022-10-16 14:42:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2022-10-16 14:42:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:42:35,016 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:35,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:35,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:35,231 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,SelfDestructingSolverStorable11 [2022-10-16 14:42:35,232 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:35,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:35,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1346886312, now seen corresponding path program 1 times [2022-10-16 14:42:35,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:35,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453877964] [2022-10-16 14:42:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:35,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:35,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:35,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453877964] [2022-10-16 14:42:35,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453877964] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:35,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590427898] [2022-10-16 14:42:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:35,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:35,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:35,321 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) [2022-10-16 14:42:35,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:42:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:35,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:42:35,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:35,406 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:35,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:35,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590427898] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:35,476 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:35,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-10-16 14:42:35,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898549059] [2022-10-16 14:42:35,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:35,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:42:35,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:35,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:42:35,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:42:35,478 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 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) [2022-10-16 14:42:35,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:35,644 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2022-10-16 14:42:35,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:42:35,645 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 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) Word has length 23 [2022-10-16 14:42:35,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:35,646 INFO L225 Difference]: With dead ends: 100 [2022-10-16 14:42:35,646 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 14:42:35,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:42:35,647 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 151 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:35,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 52 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 14:42:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2022-10-16 14:42:35,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 90 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:35,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2022-10-16 14:42:35,660 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 23 [2022-10-16 14:42:35,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:35,660 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2022-10-16 14:42:35,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 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) [2022-10-16 14:42:35,661 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2022-10-16 14:42:35,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 14:42:35,662 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:35,662 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:35,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:35,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:35,877 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:35,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1326448340, now seen corresponding path program 2 times [2022-10-16 14:42:35,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:35,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803174680] [2022-10-16 14:42:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:35,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:35,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:35,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803174680] [2022-10-16 14:42:35,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803174680] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:35,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544735358] [2022-10-16 14:42:35,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:42:35,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:35,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:35,974 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) [2022-10-16 14:42:36,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:42:36,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:42:36,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:36,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:42:36,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:36,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:36,152 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:36,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544735358] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:36,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:36,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-10-16 14:42:36,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752847125] [2022-10-16 14:42:36,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:36,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:42:36,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:36,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:42:36,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:42:36,154 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:36,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:36,213 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2022-10-16 14:42:36,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:42:36,214 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 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 [2022-10-16 14:42:36,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:36,215 INFO L225 Difference]: With dead ends: 125 [2022-10-16 14:42:36,215 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 14:42:36,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:42:36,216 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 44 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:36,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 77 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:36,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 14:42:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2022-10-16 14:42:36,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 107 states have (on average 1.1401869158878504) internal successors, (122), 110 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2022-10-16 14:42:36,230 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 28 [2022-10-16 14:42:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:36,231 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2022-10-16 14:42:36,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:36,231 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2022-10-16 14:42:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 14:42:36,232 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:36,232 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1] [2022-10-16 14:42:36,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:36,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:36,447 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:36,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:36,448 INFO L85 PathProgramCache]: Analyzing trace with hash -977343119, now seen corresponding path program 1 times [2022-10-16 14:42:36,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:36,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453116558] [2022-10-16 14:42:36,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:36,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-16 14:42:36,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:36,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453116558] [2022-10-16 14:42:36,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453116558] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:36,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327921545] [2022-10-16 14:42:36,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:36,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:36,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:36,522 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) [2022-10-16 14:42:36,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:42:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:36,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:42:36,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:36,655 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:36,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:36,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327921545] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:36,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:36,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 16 [2022-10-16 14:42:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048732822] [2022-10-16 14:42:36,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:36,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 14:42:36,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:36,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 14:42:36,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:42:36,738 INFO L87 Difference]: Start difference. First operand 111 states and 122 transitions. Second operand has 17 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:36,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:36,915 INFO L93 Difference]: Finished difference Result 349 states and 371 transitions. [2022-10-16 14:42:36,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:42:36,916 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 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 30 [2022-10-16 14:42:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:36,919 INFO L225 Difference]: With dead ends: 349 [2022-10-16 14:42:36,920 INFO L226 Difference]: Without dead ends: 347 [2022-10-16 14:42:36,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=245, Invalid=355, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:42:36,923 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 364 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:36,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 63 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:36,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-10-16 14:42:36,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 86. [2022-10-16 14:42:36,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 1.1071428571428572) internal successors, (93), 85 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:36,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2022-10-16 14:42:36,940 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 30 [2022-10-16 14:42:36,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:36,941 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2022-10-16 14:42:36,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:36,941 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2022-10-16 14:42:36,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 14:42:36,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:36,947 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:36,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:37,163 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,SelfDestructingSolverStorable14 [2022-10-16 14:42:37,164 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:37,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:37,165 INFO L85 PathProgramCache]: Analyzing trace with hash -888429834, now seen corresponding path program 2 times [2022-10-16 14:42:37,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:37,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242998788] [2022-10-16 14:42:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:37,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:37,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:37,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242998788] [2022-10-16 14:42:37,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242998788] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:37,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854181788] [2022-10-16 14:42:37,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:42:37,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:37,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:37,274 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) [2022-10-16 14:42:37,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:42:37,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:42:37,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:37,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:42:37,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:37,362 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:37,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:37,445 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:37,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854181788] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:37,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:37,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 14:42:37,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428825629] [2022-10-16 14:42:37,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:37,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:42:37,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:37,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:42:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:42:37,448 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:37,702 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2022-10-16 14:42:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 14:42:37,703 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 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 30 [2022-10-16 14:42:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:37,704 INFO L225 Difference]: With dead ends: 132 [2022-10-16 14:42:37,704 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 14:42:37,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=433, Invalid=827, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:42:37,706 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 166 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:37,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 63 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 14:42:37,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2022-10-16 14:42:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.0701754385964912) internal successors, (122), 115 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:37,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 122 transitions. [2022-10-16 14:42:37,739 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 122 transitions. Word has length 30 [2022-10-16 14:42:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:37,739 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 122 transitions. [2022-10-16 14:42:37,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 122 transitions. [2022-10-16 14:42:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 14:42:37,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:37,742 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:37,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:37,957 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,SelfDestructingSolverStorable15 [2022-10-16 14:42:37,958 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:37,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1742478744, now seen corresponding path program 2 times [2022-10-16 14:42:37,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:37,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983703101] [2022-10-16 14:42:37,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:37,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:38,137 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:38,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:38,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983703101] [2022-10-16 14:42:38,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983703101] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:38,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651341994] [2022-10-16 14:42:38,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:42:38,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:38,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:38,140 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) [2022-10-16 14:42:38,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:42:38,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:42:38,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:38,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 14:42:38,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:38,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:38,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651341994] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:38,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:38,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2022-10-16 14:42:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515208044] [2022-10-16 14:42:38,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:38,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 14:42:38,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:38,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 14:42:38,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:42:38,465 INFO L87 Difference]: Start difference. First operand 116 states and 122 transitions. Second operand has 21 states, 20 states have (on average 4.4) internal successors, (88), 21 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) [2022-10-16 14:42:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:38,892 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2022-10-16 14:42:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-16 14:42:38,893 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.4) internal successors, (88), 21 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) Word has length 43 [2022-10-16 14:42:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:38,894 INFO L225 Difference]: With dead ends: 160 [2022-10-16 14:42:38,894 INFO L226 Difference]: Without dead ends: 159 [2022-10-16 14:42:38,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=635, Invalid=1527, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 14:42:38,896 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 317 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:38,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 88 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:38,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-10-16 14:42:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 136. [2022-10-16 14:42:38,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 134 states have (on average 1.0522388059701493) internal successors, (141), 135 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:38,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 141 transitions. [2022-10-16 14:42:38,938 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 141 transitions. Word has length 43 [2022-10-16 14:42:38,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:38,938 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 141 transitions. [2022-10-16 14:42:38,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.4) internal successors, (88), 21 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) [2022-10-16 14:42:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 141 transitions. [2022-10-16 14:42:38,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 14:42:38,940 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:38,940 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:38,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:39,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:42:39,150 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:39,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:39,151 INFO L85 PathProgramCache]: Analyzing trace with hash 35745174, now seen corresponding path program 3 times [2022-10-16 14:42:39,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:39,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921495189] [2022-10-16 14:42:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:39,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:39,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:39,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921495189] [2022-10-16 14:42:39,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921495189] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:39,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674270574] [2022-10-16 14:42:39,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:42:39,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:39,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:39,454 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:39,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:42:39,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 14:42:39,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:39,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:42:39,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:39,608 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:39,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:39,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674270574] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:39,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:39,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2022-10-16 14:42:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880204818] [2022-10-16 14:42:39,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:39,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 14:42:39,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 14:42:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=447, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:42:39,875 INFO L87 Difference]: Start difference. First operand 136 states and 141 transitions. Second operand has 28 states, 27 states have (on average 4.666666666666667) internal successors, (126), 28 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:40,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:40,770 INFO L93 Difference]: Finished difference Result 266 states and 291 transitions. [2022-10-16 14:42:40,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 14:42:40,770 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.666666666666667) internal successors, (126), 28 states have internal predecessors, (126), 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 60 [2022-10-16 14:42:40,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:40,772 INFO L225 Difference]: With dead ends: 266 [2022-10-16 14:42:40,772 INFO L226 Difference]: Without dead ends: 265 [2022-10-16 14:42:40,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1729, Invalid=3383, Unknown=0, NotChecked=0, Total=5112 [2022-10-16 14:42:40,776 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 481 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:40,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 101 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:40,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-10-16 14:42:40,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 196. [2022-10-16 14:42:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 194 states have (on average 1.0721649484536082) internal successors, (208), 195 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:40,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 208 transitions. [2022-10-16 14:42:40,806 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 208 transitions. Word has length 60 [2022-10-16 14:42:40,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:40,807 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 208 transitions. [2022-10-16 14:42:40,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.666666666666667) internal successors, (126), 28 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 208 transitions. [2022-10-16 14:42:40,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 14:42:40,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:40,808 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:40,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:41,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:42:41,023 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:41,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:41,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1137316436, now seen corresponding path program 3 times [2022-10-16 14:42:41,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:41,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259254784] [2022-10-16 14:42:41,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:41,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:41,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:41,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259254784] [2022-10-16 14:42:41,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259254784] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:41,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135302068] [2022-10-16 14:42:41,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:42:41,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:41,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:41,352 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:41,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:42:41,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-10-16 14:42:41,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:41,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 14:42:41,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:41,531 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:41,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:41,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135302068] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:41,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:41,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 28 [2022-10-16 14:42:41,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368845042] [2022-10-16 14:42:41,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:41,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 14:42:41,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:41,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 14:42:41,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2022-10-16 14:42:41,832 INFO L87 Difference]: Start difference. First operand 196 states and 208 transitions. Second operand has 29 states, 28 states have (on average 5.0) internal successors, (140), 29 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:41,987 INFO L93 Difference]: Finished difference Result 264 states and 287 transitions. [2022-10-16 14:42:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 14:42:41,988 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.0) internal successors, (140), 29 states have internal predecessors, (140), 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 68 [2022-10-16 14:42:41,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:41,990 INFO L225 Difference]: With dead ends: 264 [2022-10-16 14:42:41,990 INFO L226 Difference]: Without dead ends: 263 [2022-10-16 14:42:41,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2022-10-16 14:42:41,991 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 43 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:41,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 126 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-10-16 14:42:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 256. [2022-10-16 14:42:42,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 254 states have (on average 1.0590551181102361) internal successors, (269), 255 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 269 transitions. [2022-10-16 14:42:42,029 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 269 transitions. Word has length 68 [2022-10-16 14:42:42,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:42,029 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 269 transitions. [2022-10-16 14:42:42,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.0) internal successors, (140), 29 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 269 transitions. [2022-10-16 14:42:42,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 14:42:42,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:42,031 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:42,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-16 14:42:42,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:42,245 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:42,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:42,246 INFO L85 PathProgramCache]: Analyzing trace with hash 278385128, now seen corresponding path program 3 times [2022-10-16 14:42:42,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:42,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018778232] [2022-10-16 14:42:42,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:42,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:42,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:42,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018778232] [2022-10-16 14:42:42,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018778232] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:42,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581541006] [2022-10-16 14:42:42,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:42:42,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:42,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:42,767 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:42,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:42:42,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-10-16 14:42:42,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:42,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 14:42:42,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:42,977 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:42,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:43,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581541006] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:43,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:43,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 36 [2022-10-16 14:42:43,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849209055] [2022-10-16 14:42:43,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:43,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 14:42:43,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:43,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 14:42:43,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=515, Invalid=817, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 14:42:43,435 INFO L87 Difference]: Start difference. First operand 256 states and 269 transitions. Second operand has 37 states, 36 states have (on average 4.666666666666667) internal successors, (168), 37 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:44,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:44,797 INFO L93 Difference]: Finished difference Result 328 states and 347 transitions. [2022-10-16 14:42:44,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-10-16 14:42:44,798 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.666666666666667) internal successors, (168), 37 states have internal predecessors, (168), 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 83 [2022-10-16 14:42:44,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:44,801 INFO L225 Difference]: With dead ends: 328 [2022-10-16 14:42:44,801 INFO L226 Difference]: Without dead ends: 327 [2022-10-16 14:42:44,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2002 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2547, Invalid=6383, Unknown=0, NotChecked=0, Total=8930 [2022-10-16 14:42:44,805 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 639 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:44,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 164 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:42:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-10-16 14:42:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 276. [2022-10-16 14:42:44,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 274 states have (on average 1.0401459854014599) internal successors, (285), 275 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 285 transitions. [2022-10-16 14:42:44,856 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 285 transitions. Word has length 83 [2022-10-16 14:42:44,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:44,856 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 285 transitions. [2022-10-16 14:42:44,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.666666666666667) internal successors, (168), 37 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:44,856 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 285 transitions. [2022-10-16 14:42:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 14:42:44,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:44,864 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:44,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:45,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-10-16 14:42:45,079 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:45,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:45,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1639316182, now seen corresponding path program 4 times [2022-10-16 14:42:45,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:45,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558837934] [2022-10-16 14:42:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:45,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:45,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:45,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558837934] [2022-10-16 14:42:45,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558837934] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:45,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043941937] [2022-10-16 14:42:45,980 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:42:45,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:45,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:45,983 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:46,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:42:46,065 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:42:46,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:46,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:42:46,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:46,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:46,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:47,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043941937] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:47,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:47,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 51 [2022-10-16 14:42:47,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789678177] [2022-10-16 14:42:47,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:47,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 14:42:47,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:47,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 14:42:47,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1185, Invalid=1467, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:42:47,101 INFO L87 Difference]: Start difference. First operand 276 states and 285 transitions. Second operand has 52 states, 51 states have (on average 4.823529411764706) internal successors, (246), 52 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:50,305 INFO L93 Difference]: Finished difference Result 522 states and 571 transitions. [2022-10-16 14:42:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-10-16 14:42:50,306 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 4.823529411764706) internal successors, (246), 52 states have internal predecessors, (246), 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 120 [2022-10-16 14:42:50,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:50,309 INFO L225 Difference]: With dead ends: 522 [2022-10-16 14:42:50,309 INFO L226 Difference]: Without dead ends: 521 [2022-10-16 14:42:50,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4939 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=6913, Invalid=13679, Unknown=0, NotChecked=0, Total=20592 [2022-10-16 14:42:50,318 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 750 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:50,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 187 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:42:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-10-16 14:42:50,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 396. [2022-10-16 14:42:50,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 394 states have (on average 1.0558375634517767) internal successors, (416), 395 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:50,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 416 transitions. [2022-10-16 14:42:50,368 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 416 transitions. Word has length 120 [2022-10-16 14:42:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:50,369 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 416 transitions. [2022-10-16 14:42:50,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 4.823529411764706) internal successors, (246), 52 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:50,369 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 416 transitions. [2022-10-16 14:42:50,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 14:42:50,371 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:50,371 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 28, 28, 28, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:50,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:50,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:50,579 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:50,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1485945172, now seen corresponding path program 4 times [2022-10-16 14:42:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:50,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330147143] [2022-10-16 14:42:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:50,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:52,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:52,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330147143] [2022-10-16 14:42:52,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330147143] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779054946] [2022-10-16 14:42:52,099 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:42:52,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:52,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:52,100 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:52,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:42:52,179 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:42:52,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:52,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 14:42:52,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:52,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:53,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779054946] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:53,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:53,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 60 [2022-10-16 14:42:53,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054639376] [2022-10-16 14:42:53,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:53,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-10-16 14:42:53,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:53,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-10-16 14:42:53,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2022-10-16 14:42:53,815 INFO L87 Difference]: Start difference. First operand 396 states and 416 transitions. Second operand has 61 states, 60 states have (on average 5.0) internal successors, (300), 61 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:54,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:54,150 INFO L93 Difference]: Finished difference Result 552 states and 599 transitions. [2022-10-16 14:42:54,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-10-16 14:42:54,151 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 5.0) internal successors, (300), 61 states have internal predecessors, (300), 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 148 [2022-10-16 14:42:54,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:54,155 INFO L225 Difference]: With dead ends: 552 [2022-10-16 14:42:54,156 INFO L226 Difference]: Without dead ends: 551 [2022-10-16 14:42:54,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2022-10-16 14:42:54,159 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 126 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:54,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 164 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:42:54,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2022-10-16 14:42:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 536. [2022-10-16 14:42:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 534 states have (on average 1.0580524344569289) internal successors, (565), 535 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 565 transitions. [2022-10-16 14:42:54,228 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 565 transitions. Word has length 148 [2022-10-16 14:42:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:54,229 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 565 transitions. [2022-10-16 14:42:54,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 5.0) internal successors, (300), 61 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 565 transitions. [2022-10-16 14:42:54,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-16 14:42:54,231 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:54,231 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:54,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:54,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:54,446 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:42:54,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:54,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1353658600, now seen corresponding path program 4 times [2022-10-16 14:42:54,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:54,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867449252] [2022-10-16 14:42:54,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:54,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2266 backedges. 0 proven. 2266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:55,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:55,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867449252] [2022-10-16 14:42:55,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867449252] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:55,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806139148] [2022-10-16 14:42:55,800 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:42:55,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:55,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:55,801 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:55,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:42:55,885 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:42:55,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:55,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 14:42:55,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:56,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2266 backedges. 0 proven. 2266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:56,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2266 backedges. 0 proven. 2266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:57,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806139148] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:57,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:57,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 68 [2022-10-16 14:42:57,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893885424] [2022-10-16 14:42:57,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:57,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-10-16 14:42:57,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:57,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-10-16 14:42:57,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2035, Invalid=2657, Unknown=0, NotChecked=0, Total=4692 [2022-10-16 14:42:57,861 INFO L87 Difference]: Start difference. First operand 536 states and 565 transitions. Second operand has 69 states, 68 states have (on average 4.823529411764706) internal successors, (328), 69 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:02,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:02,553 INFO L93 Difference]: Finished difference Result 664 states and 699 transitions. [2022-10-16 14:43:02,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-10-16 14:43:02,554 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 4.823529411764706) internal successors, (328), 69 states have internal predecessors, (328), 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 163 [2022-10-16 14:43:02,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:02,558 INFO L225 Difference]: With dead ends: 664 [2022-10-16 14:43:02,558 INFO L226 Difference]: Without dead ends: 663 [2022-10-16 14:43:02,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8610 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=10211, Invalid=26079, Unknown=0, NotChecked=0, Total=36290 [2022-10-16 14:43:02,564 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1580 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:02,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 304 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:43:02,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2022-10-16 14:43:02,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 556. [2022-10-16 14:43:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 554 states have (on average 1.0342960288808665) internal successors, (573), 555 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:02,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 573 transitions. [2022-10-16 14:43:02,648 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 573 transitions. Word has length 163 [2022-10-16 14:43:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:43:02,648 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 573 transitions. [2022-10-16 14:43:02,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 4.823529411764706) internal successors, (328), 69 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:02,649 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 573 transitions. [2022-10-16 14:43:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-16 14:43:02,652 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:43:02,652 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1, 1, 1] [2022-10-16 14:43:02,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:43:02,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 14:43:02,868 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:43:02,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:43:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash -560269994, now seen corresponding path program 5 times [2022-10-16 14:43:02,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:43:02,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588961002] [2022-10-16 14:43:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:02,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:43:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:05,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:05,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588961002] [2022-10-16 14:43:05,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588961002] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:43:05,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235787848] [2022-10-16 14:43:05,450 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:43:05,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:43:05,451 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:43:05,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:43:05,682 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-10-16 14:43:05,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:43:05,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 14:43:05,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:43:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:06,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:43:09,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:09,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235787848] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:43:09,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:43:09,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 99 [2022-10-16 14:43:09,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478657884] [2022-10-16 14:43:09,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:43:09,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-10-16 14:43:09,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:43:09,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-10-16 14:43:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4665, Invalid=5235, Unknown=0, NotChecked=0, Total=9900 [2022-10-16 14:43:09,469 INFO L87 Difference]: Start difference. First operand 556 states and 573 transitions. Second operand has 100 states, 99 states have (on average 4.909090909090909) internal successors, (486), 100 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:20,947 INFO L93 Difference]: Finished difference Result 1034 states and 1131 transitions. [2022-10-16 14:43:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-10-16 14:43:20,951 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 4.909090909090909) internal successors, (486), 100 states have internal predecessors, (486), 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 240 [2022-10-16 14:43:20,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:20,957 INFO L225 Difference]: With dead ends: 1034 [2022-10-16 14:43:20,957 INFO L226 Difference]: Without dead ends: 1033 [2022-10-16 14:43:20,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 286 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20251 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=27649, Invalid=55007, Unknown=0, NotChecked=0, Total=82656 [2022-10-16 14:43:20,964 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1457 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:20,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 353 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:43:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-10-16 14:43:21,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 796. [2022-10-16 14:43:21,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 794 states have (on average 1.0478589420654911) internal successors, (832), 795 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:21,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 832 transitions. [2022-10-16 14:43:21,085 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 832 transitions. Word has length 240 [2022-10-16 14:43:21,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:43:21,086 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 832 transitions. [2022-10-16 14:43:21,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 4.909090909090909) internal successors, (486), 100 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:21,087 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 832 transitions. [2022-10-16 14:43:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-10-16 14:43:21,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:43:21,091 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 60, 60, 60, 1, 1, 1, 1, 1, 1] [2022-10-16 14:43:21,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:43:21,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:21,306 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:43:21,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:43:21,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1097795412, now seen corresponding path program 5 times [2022-10-16 14:43:21,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:43:21,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124860021] [2022-10-16 14:43:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:21,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:43:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 9030 backedges. 0 proven. 9030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:25,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:25,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124860021] [2022-10-16 14:43:25,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124860021] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:43:25,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106478393] [2022-10-16 14:43:25,527 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:43:25,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:25,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:43:25,532 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:43:25,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:43:25,851 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 61 check-sat command(s) [2022-10-16 14:43:25,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:43:25,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 62 conjunts are in the unsatisfiable core [2022-10-16 14:43:25,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:43:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 9030 backedges. 0 proven. 9030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:26,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:43:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 9030 backedges. 0 proven. 9030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:31,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106478393] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:43:31,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:43:31,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62, 62] total 124 [2022-10-16 14:43:31,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032739581] [2022-10-16 14:43:31,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:43:31,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2022-10-16 14:43:31,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:43:31,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2022-10-16 14:43:31,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2022-10-16 14:43:31,699 INFO L87 Difference]: Start difference. First operand 796 states and 832 transitions. Second operand has 125 states, 124 states have (on average 5.0) internal successors, (620), 125 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:32,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:32,469 INFO L93 Difference]: Finished difference Result 1128 states and 1223 transitions. [2022-10-16 14:43:32,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-10-16 14:43:32,470 INFO L78 Accepts]: Start accepts. Automaton has has 125 states, 124 states have (on average 5.0) internal successors, (620), 125 states have internal predecessors, (620), 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 308 [2022-10-16 14:43:32,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:32,475 INFO L225 Difference]: With dead ends: 1128 [2022-10-16 14:43:32,475 INFO L226 Difference]: Without dead ends: 1127 [2022-10-16 14:43:32,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 676 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2022-10-16 14:43:32,478 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 231 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:32,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 356 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:43:32,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2022-10-16 14:43:32,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1096. [2022-10-16 14:43:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1094 states have (on average 1.0575868372943327) internal successors, (1157), 1095 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1157 transitions. [2022-10-16 14:43:32,615 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1157 transitions. Word has length 308 [2022-10-16 14:43:32,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:43:32,616 INFO L495 AbstractCegarLoop]: Abstraction has 1096 states and 1157 transitions. [2022-10-16 14:43:32,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 124 states have (on average 5.0) internal successors, (620), 125 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:32,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1157 transitions. [2022-10-16 14:43:32,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-10-16 14:43:32,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:43:32,623 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:43:32,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:43:32,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:32,837 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:43:32,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:43:32,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1348735256, now seen corresponding path program 5 times [2022-10-16 14:43:32,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:43:32,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032866310] [2022-10-16 14:43:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:32,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:43:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:37,515 INFO L134 CoverageAnalysis]: Checked inductivity of 9642 backedges. 0 proven. 9642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:37,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:37,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032866310] [2022-10-16 14:43:37,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032866310] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:43:37,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287310211] [2022-10-16 14:43:37,515 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:43:37,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:37,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:43:37,517 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:43:37,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:43:37,885 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2022-10-16 14:43:37,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:43:37,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 66 conjunts are in the unsatisfiable core [2022-10-16 14:43:37,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:43:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 9642 backedges. 0 proven. 9642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:38,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:43:44,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9642 backedges. 0 proven. 9642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:44,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287310211] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:43:44,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:43:44,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 132 [2022-10-16 14:43:44,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731588433] [2022-10-16 14:43:44,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:43:44,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2022-10-16 14:43:44,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:43:44,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2022-10-16 14:43:44,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8147, Invalid=9409, Unknown=0, NotChecked=0, Total=17556 [2022-10-16 14:43:44,211 INFO L87 Difference]: Start difference. First operand 1096 states and 1157 transitions. Second operand has 133 states, 132 states have (on average 4.909090909090909) internal successors, (648), 133 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:00,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:00,493 INFO L93 Difference]: Finished difference Result 1336 states and 1403 transitions. [2022-10-16 14:44:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2022-10-16 14:44:00,493 INFO L78 Accepts]: Start accepts. Automaton has has 133 states, 132 states have (on average 4.909090909090909) internal successors, (648), 133 states have internal predecessors, (648), 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 323 [2022-10-16 14:44:00,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:00,500 INFO L225 Difference]: With dead ends: 1336 [2022-10-16 14:44:00,500 INFO L226 Difference]: Without dead ends: 1335 [2022-10-16 14:44:00,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 381 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35650 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=40899, Invalid=105407, Unknown=0, NotChecked=0, Total=146306 [2022-10-16 14:44:00,511 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2034 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:00,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 603 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:44:00,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-10-16 14:44:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1116. [2022-10-16 14:44:00,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1114 states have (on average 1.0314183123877918) internal successors, (1149), 1115 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:00,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1149 transitions. [2022-10-16 14:44:00,638 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1149 transitions. Word has length 323 [2022-10-16 14:44:00,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:00,638 INFO L495 AbstractCegarLoop]: Abstraction has 1116 states and 1149 transitions. [2022-10-16 14:44:00,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 133 states, 132 states have (on average 4.909090909090909) internal successors, (648), 133 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1149 transitions. [2022-10-16 14:44:00,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-10-16 14:44:00,643 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:00,643 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:00,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:00,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:00,859 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:44:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:00,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2079036842, now seen corresponding path program 6 times [2022-10-16 14:44:00,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:00,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475407279] [2022-10-16 14:44:00,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:00,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:10,650 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:10,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:10,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475407279] [2022-10-16 14:44:10,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475407279] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:10,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197141830] [2022-10-16 14:44:10,651 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:44:10,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:10,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:10,658 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:10,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:44:11,262 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-10-16 14:44:11,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:44:11,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 97 conjunts are in the unsatisfiable core [2022-10-16 14:44:11,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:12,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:44:25,310 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:25,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197141830] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:44:25,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:44:25,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 195 [2022-10-16 14:44:25,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004739859] [2022-10-16 14:44:25,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:44:25,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-10-16 14:44:25,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:25,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-10-16 14:44:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18537, Invalid=19683, Unknown=0, NotChecked=0, Total=38220 [2022-10-16 14:44:25,323 INFO L87 Difference]: Start difference. First operand 1116 states and 1149 transitions. Second operand has 196 states, 195 states have (on average 4.953846153846154) internal successors, (966), 196 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:11,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:11,857 INFO L93 Difference]: Finished difference Result 2058 states and 2251 transitions. [2022-10-16 14:45:11,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-10-16 14:45:11,857 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 4.953846153846154) internal successors, (966), 196 states have internal predecessors, (966), 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 480 [2022-10-16 14:45:11,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:11,866 INFO L225 Difference]: With dead ends: 2058 [2022-10-16 14:45:11,867 INFO L226 Difference]: Without dead ends: 2057 [2022-10-16 14:45:11,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1435 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 574 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81979 ImplicationChecksByTransitivity, 59.9s TimeCoverageRelationStatistics Valid=110593, Invalid=220607, Unknown=0, NotChecked=0, Total=331200 [2022-10-16 14:45:11,890 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3007 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:11,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 674 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:45:11,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2022-10-16 14:45:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 1596. [2022-10-16 14:45:12,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1594 states have (on average 1.0439146800501882) internal successors, (1664), 1595 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 1664 transitions. [2022-10-16 14:45:12,122 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 1664 transitions. Word has length 480 [2022-10-16 14:45:12,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:12,124 INFO L495 AbstractCegarLoop]: Abstraction has 1596 states and 1664 transitions. [2022-10-16 14:45:12,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 4.953846153846154) internal successors, (966), 196 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 1664 transitions. [2022-10-16 14:45:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-10-16 14:45:12,131 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:12,132 INFO L195 NwaCegarLoop]: trace histogram [125, 125, 124, 124, 124, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:12,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:45:12,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:45:12,345 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:45:12,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:12,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1604213932, now seen corresponding path program 6 times [2022-10-16 14:45:12,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:12,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219781184] [2022-10-16 14:45:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:12,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 38502 backedges. 0 proven. 38502 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:28,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:28,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219781184] [2022-10-16 14:45:28,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219781184] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:28,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660723314] [2022-10-16 14:45:28,462 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:45:28,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:28,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:28,464 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:28,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:45:29,391 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 125 check-sat command(s) [2022-10-16 14:45:29,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:45:29,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 126 conjunts are in the unsatisfiable core [2022-10-16 14:45:29,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 38502 backedges. 0 proven. 38502 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:30,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 38502 backedges. 0 proven. 38502 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:52,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660723314] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:52,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:52,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [126, 126, 126] total 252 [2022-10-16 14:45:52,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436683496] [2022-10-16 14:45:52,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:52,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 253 states [2022-10-16 14:45:52,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:52,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 253 interpolants. [2022-10-16 14:45:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31878, Invalid=31878, Unknown=0, NotChecked=0, Total=63756 [2022-10-16 14:45:52,614 INFO L87 Difference]: Start difference. First operand 1596 states and 1664 transitions. Second operand has 253 states, 252 states have (on average 5.0) internal successors, (1260), 253 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:55,755 INFO L93 Difference]: Finished difference Result 2280 states and 2471 transitions. [2022-10-16 14:45:55,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 252 states. [2022-10-16 14:45:55,756 INFO L78 Accepts]: Start accepts. Automaton has has 253 states, 252 states have (on average 5.0) internal successors, (1260), 253 states have internal predecessors, (1260), 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 628 [2022-10-16 14:45:55,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:55,765 INFO L225 Difference]: With dead ends: 2280 [2022-10-16 14:45:55,765 INFO L226 Difference]: Without dead ends: 2279 [2022-10-16 14:45:55,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1129 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=31878, Invalid=31878, Unknown=0, NotChecked=0, Total=63756 [2022-10-16 14:45:55,771 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 481 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:55,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 637 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:45:55,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2022-10-16 14:45:56,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2216. [2022-10-16 14:45:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 2214 states have (on average 1.0573622402890697) internal successors, (2341), 2215 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:56,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 2341 transitions. [2022-10-16 14:45:56,110 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 2341 transitions. Word has length 628 [2022-10-16 14:45:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:56,112 INFO L495 AbstractCegarLoop]: Abstraction has 2216 states and 2341 transitions. [2022-10-16 14:45:56,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 253 states, 252 states have (on average 5.0) internal successors, (1260), 253 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 2341 transitions. [2022-10-16 14:45:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2022-10-16 14:45:56,119 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:56,120 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:56,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 14:45:56,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 14:45:56,334 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 14:45:56,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:56,336 INFO L85 PathProgramCache]: Analyzing trace with hash -127046936, now seen corresponding path program 6 times [2022-10-16 14:45:56,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:56,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335773058] [2022-10-16 14:45:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:56,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:12,276 INFO L134 CoverageAnalysis]: Checked inductivity of 39754 backedges. 0 proven. 39754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:46:12,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:46:12,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335773058] [2022-10-16 14:46:12,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335773058] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:46:12,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168587408] [2022-10-16 14:46:12,277 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:46:12,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:46:12,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:46:12,278 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:46:12,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 14:46:13,212 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2022-10-16 14:46:13,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:46:13,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 130 conjunts are in the unsatisfiable core [2022-10-16 14:46:13,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:46:14,117 INFO L134 CoverageAnalysis]: Checked inductivity of 39754 backedges. 0 proven. 39754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:46:14,118 INFO L328 TraceCheckSpWp]: Computing backward predicates...