/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-cav19/array_init_both_ends_multiple_sum.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 09:54:59,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 09:54:59,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 09:54:59,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 09:54:59,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 09:54:59,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 09:54:59,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 09:54:59,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 09:54:59,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 09:54:59,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 09:54:59,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 09:54:59,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 09:54:59,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 09:54:59,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 09:54:59,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 09:54:59,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 09:54:59,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 09:54:59,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 09:54:59,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 09:54:59,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 09:54:59,561 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 09:54:59,589 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 09:54:59,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 09:54:59,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 09:54:59,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 09:54:59,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 09:54:59,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 09:54:59,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 09:54:59,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 09:54:59,593 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 09:54:59,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 09:54:59,593 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 09:54:59,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 09:54:59,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 09:54:59,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 09:54:59,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 09:54:59,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 09:54:59,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 09:54:59,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 09:54:59,595 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 09:54:59,596 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 09:54:59,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 09:54:59,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 09:54:59,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 09:54:59,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 09:54:59,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 09:54:59,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 09:54:59,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 09:54:59,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 09:54:59,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 09:54:59,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 09:54:59,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 09:54:59,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 09:54:59,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 09:54:59,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 09:55:00,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 09:55:00,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 09:55:00,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 09:55:00,053 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 09:55:00,053 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 09:55:00,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_init_both_ends_multiple_sum.c [2022-10-16 09:55:00,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc67bf5c6/62ab770f3e1043aab1b97647148edc32/FLAGf94e53774 [2022-10-16 09:55:00,797 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 09:55:00,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_both_ends_multiple_sum.c [2022-10-16 09:55:00,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc67bf5c6/62ab770f3e1043aab1b97647148edc32/FLAGf94e53774 [2022-10-16 09:55:01,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc67bf5c6/62ab770f3e1043aab1b97647148edc32 [2022-10-16 09:55:01,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 09:55:01,187 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 09:55:01,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 09:55:01,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 09:55:01,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 09:55:01,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61554cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01, skipping insertion in model container [2022-10-16 09:55:01,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 09:55:01,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 09:55:01,468 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/array-cav19/array_init_both_ends_multiple_sum.c[424,437] [2022-10-16 09:55:01,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 09:55:01,510 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 09:55:01,528 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/array-cav19/array_init_both_ends_multiple_sum.c[424,437] [2022-10-16 09:55:01,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 09:55:01,570 INFO L208 MainTranslator]: Completed translation [2022-10-16 09:55:01,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01 WrapperNode [2022-10-16 09:55:01,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 09:55:01,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 09:55:01,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 09:55:01,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 09:55:01,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,640 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-10-16 09:55:01,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 09:55:01,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 09:55:01,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 09:55:01,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 09:55:01,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,692 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 09:55:01,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 09:55:01,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 09:55:01,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 09:55:01,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 09:55:01,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:01,750 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 09:55:01,764 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 09:55:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 09:55:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 09:55:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 09:55:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 09:55:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 09:55:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 09:55:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 09:55:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 09:55:01,892 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 09:55:01,894 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 09:55:02,173 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 09:55:02,180 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 09:55:02,181 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 09:55:02,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:02 BoogieIcfgContainer [2022-10-16 09:55:02,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 09:55:02,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 09:55:02,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 09:55:02,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 09:55:02,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 09:55:01" (1/3) ... [2022-10-16 09:55:02,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a430fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:55:02, skipping insertion in model container [2022-10-16 09:55:02,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (2/3) ... [2022-10-16 09:55:02,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a430fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:55:02, skipping insertion in model container [2022-10-16 09:55:02,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:02" (3/3) ... [2022-10-16 09:55:02,195 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_both_ends_multiple_sum.c [2022-10-16 09:55:02,232 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 09:55:02,232 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-16 09:55:02,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 09:55:02,348 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;@6ae44a3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 09:55:02,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-16 09:55:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 52 states have internal predecessors, (59), 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 09:55:02,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 09:55:02,361 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:02,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 09:55:02,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:02,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 09:55:02,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:02,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701264410] [2022-10-16 09:55:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:02,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:02,750 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 09:55:02,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:02,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701264410] [2022-10-16 09:55:02,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701264410] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:02,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:02,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:02,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580598153] [2022-10-16 09:55:02,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:02,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:02,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:02,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:02,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:02,804 INFO L87 Difference]: Start difference. First operand has 53 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 09:55:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:03,029 INFO L93 Difference]: Finished difference Result 149 states and 165 transitions. [2022-10-16 09:55:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:03,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 09:55:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:03,046 INFO L225 Difference]: With dead ends: 149 [2022-10-16 09:55:03,047 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 09:55:03,051 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 09:55:03,060 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 46 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:03,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 77 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:55:03,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 09:55:03,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 50. [2022-10-16 09:55:03,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.65625) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-10-16 09:55:03,127 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 5 [2022-10-16 09:55:03,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:03,127 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-10-16 09:55:03,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 09:55:03,128 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-10-16 09:55:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 09:55:03,129 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:03,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 09:55:03,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 09:55:03,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 889609168, now seen corresponding path program 1 times [2022-10-16 09:55:03,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:03,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17248913] [2022-10-16 09:55:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:03,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:03,289 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 09:55:03,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:03,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17248913] [2022-10-16 09:55:03,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17248913] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:03,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:03,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:03,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759941325] [2022-10-16 09:55:03,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:03,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:03,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:03,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:03,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:03,294 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:03,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:03,411 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2022-10-16 09:55:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:03,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 09:55:03,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:03,416 INFO L225 Difference]: With dead ends: 120 [2022-10-16 09:55:03,416 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 09:55:03,417 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 09:55:03,422 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 116 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:03,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 40 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:03,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 09:55:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 60. [2022-10-16 09:55:03,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 59 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 09:55:03,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2022-10-16 09:55:03,447 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 6 [2022-10-16 09:55:03,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:03,447 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2022-10-16 09:55:03,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:03,450 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-10-16 09:55:03,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 09:55:03,451 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:03,451 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 09:55:03,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 09:55:03,452 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:03,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:03,453 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 09:55:03,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:03,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960234878] [2022-10-16 09:55:03,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:03,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:03,675 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 09:55:03,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:03,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960234878] [2022-10-16 09:55:03,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960234878] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:03,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606223379] [2022-10-16 09:55:03,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:03,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:03,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:03,679 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 09:55:03,705 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 09:55:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:03,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:55:03,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:03,834 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 09:55:03,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:03,889 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 09:55:03,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606223379] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:03,890 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:03,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 09:55:03,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42978495] [2022-10-16 09:55:03,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:03,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 09:55:03,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 09:55:03,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 09:55:03,893 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 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 09:55:04,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:04,159 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2022-10-16 09:55:04,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 09:55:04,160 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 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 09:55:04,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:04,169 INFO L225 Difference]: With dead ends: 101 [2022-10-16 09:55:04,169 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 09:55:04,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 09:55:04,176 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 88 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:04,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 131 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:55:04,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 09:55:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 71. [2022-10-16 09:55:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 70 states have internal predecessors, (82), 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 09:55:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 82 transitions. [2022-10-16 09:55:04,208 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 82 transitions. Word has length 9 [2022-10-16 09:55:04,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:04,209 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 82 transitions. [2022-10-16 09:55:04,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 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 09:55:04,210 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 82 transitions. [2022-10-16 09:55:04,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 09:55:04,210 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:04,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:04,243 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 09:55:04,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:04,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:04,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:04,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1607293652, now seen corresponding path program 1 times [2022-10-16 09:55:04,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:04,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946867149] [2022-10-16 09:55:04,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:04,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 09:55:04,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:04,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946867149] [2022-10-16 09:55:04,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946867149] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:04,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:04,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 09:55:04,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632921373] [2022-10-16 09:55:04,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:04,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:04,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:04,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:04,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:04,510 INFO L87 Difference]: Start difference. First operand 71 states and 82 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 09:55:04,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:04,586 INFO L93 Difference]: Finished difference Result 93 states and 100 transitions. [2022-10-16 09:55:04,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:04,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-10-16 09:55:04,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:04,588 INFO L225 Difference]: With dead ends: 93 [2022-10-16 09:55:04,589 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 09:55:04,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 09:55:04,600 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 71 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:04,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 40 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:04,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 09:55:04,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2022-10-16 09:55:04,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.471698113207547) internal successors, (78), 70 states have internal predecessors, (78), 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 09:55:04,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2022-10-16 09:55:04,624 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 10 [2022-10-16 09:55:04,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:04,628 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2022-10-16 09:55:04,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 09:55:04,628 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2022-10-16 09:55:04,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 09:55:04,629 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:04,629 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 09:55:04,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 09:55:04,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:04,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 09:55:04,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:04,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148993721] [2022-10-16 09:55:04,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:04,812 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 09:55:04,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:04,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148993721] [2022-10-16 09:55:04,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148993721] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:04,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969175064] [2022-10-16 09:55:04,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:04,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:04,821 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 09:55:04,825 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 09:55:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:04,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:55:04,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:04,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:04,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:04,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969175064] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:04,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:55:04,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 09:55:04,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891728348] [2022-10-16 09:55:04,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:04,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 09:55:04,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 09:55:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 09:55:04,954 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 09:55:05,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:05,058 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2022-10-16 09:55:05,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 09:55:05,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-10-16 09:55:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:05,061 INFO L225 Difference]: With dead ends: 89 [2022-10-16 09:55:05,061 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 09:55:05,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 09:55:05,063 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 35 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:05,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 114 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 09:55:05,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 70. [2022-10-16 09:55:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 69 states have internal predecessors, (75), 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 09:55:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2022-10-16 09:55:05,083 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 10 [2022-10-16 09:55:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:05,083 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2022-10-16 09:55:05,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 09:55:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2022-10-16 09:55:05,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 09:55:05,085 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:05,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:05,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 09:55:05,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:05,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:05,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:05,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2043024110, now seen corresponding path program 1 times [2022-10-16 09:55:05,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:05,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472178558] [2022-10-16 09:55:05,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:05,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 09:55:05,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:05,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472178558] [2022-10-16 09:55:05,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472178558] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:05,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:05,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:05,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736823211] [2022-10-16 09:55:05,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:05,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:05,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:05,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:05,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:05,360 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 09:55:05,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:05,425 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2022-10-16 09:55:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:05,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 09:55:05,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:05,427 INFO L225 Difference]: With dead ends: 88 [2022-10-16 09:55:05,427 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 09:55:05,428 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 09:55:05,429 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:05,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 76 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:05,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 09:55:05,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2022-10-16 09:55:05,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 72 states have internal predecessors, (78), 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 09:55:05,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2022-10-16 09:55:05,438 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 15 [2022-10-16 09:55:05,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:05,438 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2022-10-16 09:55:05,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 09:55:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2022-10-16 09:55:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 09:55:05,440 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:05,440 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:05,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 09:55:05,441 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:05,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -250219556, now seen corresponding path program 1 times [2022-10-16 09:55:05,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:05,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321833834] [2022-10-16 09:55:05,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:05,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 09:55:05,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:05,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321833834] [2022-10-16 09:55:05,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321833834] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:05,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674880470] [2022-10-16 09:55:05,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:05,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:05,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:05,544 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 09:55:05,565 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 09:55:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:05,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:55:05,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 09:55:05,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 09:55:05,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674880470] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:05,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:05,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-16 09:55:05,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692100693] [2022-10-16 09:55:05,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:05,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 09:55:05,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:05,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 09:55:05,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-10-16 09:55:05,714 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 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 09:55:05,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:05,875 INFO L93 Difference]: Finished difference Result 133 states and 143 transitions. [2022-10-16 09:55:05,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 09:55:05,876 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 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 18 [2022-10-16 09:55:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:05,876 INFO L225 Difference]: With dead ends: 133 [2022-10-16 09:55:05,877 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 09:55:05,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2022-10-16 09:55:05,878 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 197 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:05,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 70 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 09:55:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 68. [2022-10-16 09:55:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.290909090909091) internal successors, (71), 67 states have internal predecessors, (71), 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 09:55:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2022-10-16 09:55:05,886 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 18 [2022-10-16 09:55:05,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:05,887 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2022-10-16 09:55:05,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 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 09:55:05,887 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2022-10-16 09:55:05,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 09:55:05,890 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:05,890 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1] [2022-10-16 09:55:05,919 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 09:55:06,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:06,092 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:06,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:06,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1151175080, now seen corresponding path program 2 times [2022-10-16 09:55:06,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:06,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630756745] [2022-10-16 09:55:06,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:06,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:06,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:06,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630756745] [2022-10-16 09:55:06,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630756745] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:06,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107880001] [2022-10-16 09:55:06,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:55:06,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:06,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:06,306 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 09:55:06,315 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 09:55:06,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 09:55:06,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:06,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 09:55:06,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 09:55:06,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 09:55:06,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107880001] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:06,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:06,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 17 [2022-10-16 09:55:06,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664946600] [2022-10-16 09:55:06,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:06,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 09:55:06,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:06,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 09:55:06,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 09:55:06,514 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:06,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:06,861 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2022-10-16 09:55:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 09:55:06,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 09:55:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:06,863 INFO L225 Difference]: With dead ends: 91 [2022-10-16 09:55:06,863 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 09:55:06,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 09:55:06,865 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 242 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:06,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 106 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:55:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 09:55:06,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 61. [2022-10-16 09:55:06,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 60 states have internal predecessors, (63), 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 09:55:06,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2022-10-16 09:55:06,872 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 21 [2022-10-16 09:55:06,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:06,872 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2022-10-16 09:55:06,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2022-10-16 09:55:06,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 09:55:06,874 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:06,874 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:06,918 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 09:55:07,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:07,090 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:07,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1242364956, now seen corresponding path program 2 times [2022-10-16 09:55:07,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:07,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578882433] [2022-10-16 09:55:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:07,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 09:55:07,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:07,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578882433] [2022-10-16 09:55:07,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578882433] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:07,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607868930] [2022-10-16 09:55:07,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:55:07,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:07,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:07,251 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 09:55:07,274 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 09:55:07,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:55:07,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:07,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 09:55:07,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:07,466 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 09:55:07,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 09:55:07,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607868930] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:07,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:07,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2022-10-16 09:55:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847123324] [2022-10-16 09:55:07,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:07,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 09:55:07,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:07,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 09:55:07,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2022-10-16 09:55:07,588 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:07,862 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2022-10-16 09:55:07,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 09:55:07,863 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 09:55:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:07,864 INFO L225 Difference]: With dead ends: 137 [2022-10-16 09:55:07,864 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 09:55:07,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=343, Invalid=847, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 09:55:07,866 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 192 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:07,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 98 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 09:55:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 77. [2022-10-16 09:55:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 76 states have internal predecessors, (79), 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 09:55:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2022-10-16 09:55:07,873 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 26 [2022-10-16 09:55:07,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:07,873 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2022-10-16 09:55:07,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2022-10-16 09:55:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 09:55:07,875 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:07,875 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:07,914 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 09:55:08,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:08,092 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:08,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:08,093 INFO L85 PathProgramCache]: Analyzing trace with hash -990934028, now seen corresponding path program 3 times [2022-10-16 09:55:08,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:08,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80347169] [2022-10-16 09:55:08,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:08,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 09:55:08,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:08,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80347169] [2022-10-16 09:55:08,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80347169] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:08,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729798930] [2022-10-16 09:55:08,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 09:55:08,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:08,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:08,567 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 09:55:08,586 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 09:55:08,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 09:55:08,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:08,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:55:08,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:08,750 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 09:55:08,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:08,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729798930] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:08,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:55:08,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 21 [2022-10-16 09:55:08,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968610775] [2022-10-16 09:55:08,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:08,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 09:55:08,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:08,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 09:55:08,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2022-10-16 09:55:08,753 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 09:55:08,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:08,856 INFO L93 Difference]: Finished difference Result 91 states and 93 transitions. [2022-10-16 09:55:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 09:55:08,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 42 [2022-10-16 09:55:08,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:08,858 INFO L225 Difference]: With dead ends: 91 [2022-10-16 09:55:08,858 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 09:55:08,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2022-10-16 09:55:08,859 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 58 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:08,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 57 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 09:55:08,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 73. [2022-10-16 09:55:08,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 64 states have (on average 1.171875) internal successors, (75), 72 states have internal predecessors, (75), 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 09:55:08,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2022-10-16 09:55:08,866 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 42 [2022-10-16 09:55:08,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:08,867 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2022-10-16 09:55:08,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 09:55:08,867 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2022-10-16 09:55:08,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 09:55:08,868 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:08,868 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:08,906 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 09:55:09,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:09,083 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:09,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash -839543346, now seen corresponding path program 1 times [2022-10-16 09:55:09,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:09,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937139699] [2022-10-16 09:55:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 09:55:09,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:09,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937139699] [2022-10-16 09:55:09,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937139699] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:09,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758387291] [2022-10-16 09:55:09,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:09,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:09,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:09,275 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 09:55:09,281 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 09:55:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:09,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 09:55:09,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 09:55:09,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:09,974 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 09:55:09,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758387291] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:09,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:09,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 38 [2022-10-16 09:55:09,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370525061] [2022-10-16 09:55:09,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:09,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 09:55:09,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:09,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 09:55:09,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1087, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 09:55:09,978 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 38 states, 38 states have (on average 2.5) internal successors, (95), 38 states have internal predecessors, (95), 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 09:55:10,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:10,713 INFO L93 Difference]: Finished difference Result 179 states and 193 transitions. [2022-10-16 09:55:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 09:55:10,713 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.5) internal successors, (95), 38 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 09:55:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:10,715 INFO L225 Difference]: With dead ends: 179 [2022-10-16 09:55:10,715 INFO L226 Difference]: Without dead ends: 137 [2022-10-16 09:55:10,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1046, Invalid=2860, Unknown=0, NotChecked=0, Total=3906 [2022-10-16 09:55:10,720 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 320 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:10,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 130 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:55:10,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-10-16 09:55:10,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 115. [2022-10-16 09:55:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 106 states have (on average 1.1037735849056605) internal successors, (117), 114 states have internal predecessors, (117), 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 09:55:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 117 transitions. [2022-10-16 09:55:10,731 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 117 transitions. Word has length 47 [2022-10-16 09:55:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:10,731 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 117 transitions. [2022-10-16 09:55:10,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.5) internal successors, (95), 38 states have internal predecessors, (95), 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 09:55:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 117 transitions. [2022-10-16 09:55:10,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 09:55:10,735 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:10,736 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 09:55:10,774 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 09:55:10,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:10,950 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:10,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1740572070, now seen corresponding path program 2 times [2022-10-16 09:55:10,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:10,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819099043] [2022-10-16 09:55:10,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 09:55:12,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:12,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819099043] [2022-10-16 09:55:12,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819099043] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:12,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508375] [2022-10-16 09:55:12,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:55:12,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:12,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:12,169 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 09:55:12,180 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 09:55:12,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 09:55:12,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:12,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 09:55:12,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-10-16 09:55:12,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:12,567 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-10-16 09:55:12,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508375] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:12,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:12,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 3, 3] total 39 [2022-10-16 09:55:12,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198183278] [2022-10-16 09:55:12,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:12,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 09:55:12,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:12,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 09:55:12,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1251, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 09:55:12,572 INFO L87 Difference]: Start difference. First operand 115 states and 117 transitions. Second operand has 40 states, 40 states have (on average 2.975) internal successors, (119), 39 states have internal predecessors, (119), 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 09:55:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:13,897 INFO L93 Difference]: Finished difference Result 187 states and 192 transitions. [2022-10-16 09:55:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-16 09:55:13,897 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.975) internal successors, (119), 39 states have internal predecessors, (119), 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 87 [2022-10-16 09:55:13,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:13,900 INFO L225 Difference]: With dead ends: 187 [2022-10-16 09:55:13,901 INFO L226 Difference]: Without dead ends: 135 [2022-10-16 09:55:13,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1187 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1448, Invalid=4252, Unknown=0, NotChecked=0, Total=5700 [2022-10-16 09:55:13,905 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 397 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:13,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 137 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:55:13,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-10-16 09:55:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 118. [2022-10-16 09:55:13,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 1.0909090909090908) internal successors, (120), 117 states have internal predecessors, (120), 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 09:55:13,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2022-10-16 09:55:13,918 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 87 [2022-10-16 09:55:13,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:13,918 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2022-10-16 09:55:13,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.975) internal successors, (119), 39 states have internal predecessors, (119), 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 09:55:13,919 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2022-10-16 09:55:13,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-16 09:55:13,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:13,926 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:13,969 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 09:55:14,139 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,SelfDestructingSolverStorable11 [2022-10-16 09:55:14,140 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:14,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:14,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1362448128, now seen corresponding path program 1 times [2022-10-16 09:55:14,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:14,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407931284] [2022-10-16 09:55:14,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:14,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 09:55:15,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:15,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407931284] [2022-10-16 09:55:15,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407931284] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:15,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824516761] [2022-10-16 09:55:15,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:15,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:15,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:15,395 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 09:55:15,412 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 09:55:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:15,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 09:55:15,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 09:55:16,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 09:55:17,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824516761] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:17,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:17,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 102 [2022-10-16 09:55:17,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345970079] [2022-10-16 09:55:17,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:17,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-10-16 09:55:17,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:17,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-10-16 09:55:17,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2452, Invalid=8054, Unknown=0, NotChecked=0, Total=10506 [2022-10-16 09:55:17,848 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 103 states, 103 states have (on average 2.1067961165048543) internal successors, (217), 102 states have internal predecessors, (217), 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 09:55:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:19,940 INFO L93 Difference]: Finished difference Result 251 states and 271 transitions. [2022-10-16 09:55:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-10-16 09:55:19,941 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 2.1067961165048543) internal successors, (217), 102 states have internal predecessors, (217), 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 100 [2022-10-16 09:55:19,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:19,944 INFO L225 Difference]: With dead ends: 251 [2022-10-16 09:55:19,944 INFO L226 Difference]: Without dead ends: 200 [2022-10-16 09:55:19,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9222 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5543, Invalid=17409, Unknown=0, NotChecked=0, Total=22952 [2022-10-16 09:55:19,956 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 735 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:19,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 74 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 09:55:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-10-16 09:55:19,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 186. [2022-10-16 09:55:19,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 178 states have (on average 1.0561797752808988) internal successors, (188), 185 states have internal predecessors, (188), 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 09:55:19,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 188 transitions. [2022-10-16 09:55:19,971 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 188 transitions. Word has length 100 [2022-10-16 09:55:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:19,973 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 188 transitions. [2022-10-16 09:55:19,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 2.1067961165048543) internal successors, (217), 102 states have internal predecessors, (217), 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 09:55:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 188 transitions. [2022-10-16 09:55:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-10-16 09:55:19,982 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:19,982 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:20,020 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 09:55:20,197 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,SelfDestructingSolverStorable12 [2022-10-16 09:55:20,198 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:20,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:20,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1557463228, now seen corresponding path program 2 times [2022-10-16 09:55:20,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:20,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861275187] [2022-10-16 09:55:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:20,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2172 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 09:55:24,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:24,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861275187] [2022-10-16 09:55:24,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861275187] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:24,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376868223] [2022-10-16 09:55:24,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:55:24,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:24,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:24,037 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 09:55:24,038 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 09:55:24,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:55:24,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:24,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 69 conjunts are in the unsatisfiable core [2022-10-16 09:55:24,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:27,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2172 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 09:55:27,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2172 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 09:55:32,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376868223] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:32,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:32,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 204 [2022-10-16 09:55:32,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378313559] [2022-10-16 09:55:32,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:32,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 205 states [2022-10-16 09:55:32,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:32,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2022-10-16 09:55:32,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9524, Invalid=32296, Unknown=0, NotChecked=0, Total=41820 [2022-10-16 09:55:32,516 INFO L87 Difference]: Start difference. First operand 186 states and 188 transitions. Second operand has 205 states, 205 states have (on average 2.053658536585366) internal successors, (421), 204 states have internal predecessors, (421), 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 09:55:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:40,080 INFO L93 Difference]: Finished difference Result 387 states and 424 transitions. [2022-10-16 09:55:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-10-16 09:55:40,081 INFO L78 Accepts]: Start accepts. Automaton has has 205 states, 205 states have (on average 2.053658536585366) internal successors, (421), 204 states have internal predecessors, (421), 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 168 [2022-10-16 09:55:40,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:40,084 INFO L225 Difference]: With dead ends: 387 [2022-10-16 09:55:40,084 INFO L226 Difference]: Without dead ends: 336 [2022-10-16 09:55:40,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38377 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=21778, Invalid=70942, Unknown=0, NotChecked=0, Total=92720 [2022-10-16 09:55:40,096 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1211 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:40,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 166 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 09:55:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-10-16 09:55:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 322. [2022-10-16 09:55:40,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 314 states have (on average 1.0318471337579618) internal successors, (324), 321 states have internal predecessors, (324), 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 09:55:40,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 324 transitions. [2022-10-16 09:55:40,118 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 324 transitions. Word has length 168 [2022-10-16 09:55:40,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:40,119 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 324 transitions. [2022-10-16 09:55:40,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 205 states, 205 states have (on average 2.053658536585366) internal successors, (421), 204 states have internal predecessors, (421), 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 09:55:40,120 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 324 transitions. [2022-10-16 09:55:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-10-16 09:55:40,124 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:40,124 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 67, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:40,155 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 09:55:40,338 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,SelfDestructingSolverStorable13 [2022-10-16 09:55:40,339 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:55:40,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:40,340 INFO L85 PathProgramCache]: Analyzing trace with hash 308132300, now seen corresponding path program 3 times [2022-10-16 09:55:40,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:40,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421681532] [2022-10-16 09:55:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:40,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 8938 backedges. 0 proven. 8911 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 09:55:54,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:54,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421681532] [2022-10-16 09:55:54,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421681532] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:54,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923036827] [2022-10-16 09:55:54,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 09:55:54,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:54,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:54,431 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 09:55:54,448 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 09:55:54,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 09:55:54,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:54,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 09:55:54,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 8938 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2022-10-16 09:55:55,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:56,571 INFO L134 CoverageAnalysis]: Checked inductivity of 8938 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2022-10-16 09:55:56,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923036827] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:56,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:56,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [137, 9, 9] total 152 [2022-10-16 09:55:56,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027912717] [2022-10-16 09:55:56,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:56,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 153 states [2022-10-16 09:55:56,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:56,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2022-10-16 09:55:56,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5395, Invalid=17861, Unknown=0, NotChecked=0, Total=23256 [2022-10-16 09:55:56,580 INFO L87 Difference]: Start difference. First operand 322 states and 324 transitions. Second operand has 153 states, 153 states have (on average 2.30718954248366) internal successors, (353), 152 states have internal predecessors, (353), 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 09:56:09,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:09,322 INFO L93 Difference]: Finished difference Result 426 states and 434 transitions. [2022-10-16 09:56:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-10-16 09:56:09,323 INFO L78 Accepts]: Start accepts. Automaton has has 153 states, 153 states have (on average 2.30718954248366) internal successors, (353), 152 states have internal predecessors, (353), 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 304 [2022-10-16 09:56:09,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:09,325 INFO L225 Difference]: With dead ends: 426 [2022-10-16 09:56:09,326 INFO L226 Difference]: Without dead ends: 375 [2022-10-16 09:56:09,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 294 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19961 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=21550, Invalid=65770, Unknown=0, NotChecked=0, Total=87320 [2022-10-16 09:56:09,332 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 988 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:09,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 172 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 09:56:09,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-10-16 09:56:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 358. [2022-10-16 09:56:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 350 states have (on average 1.0285714285714285) internal successors, (360), 357 states have internal predecessors, (360), 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 09:56:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 360 transitions. [2022-10-16 09:56:09,357 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 360 transitions. Word has length 304 [2022-10-16 09:56:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:09,358 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 360 transitions. [2022-10-16 09:56:09,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 153 states, 153 states have (on average 2.30718954248366) internal successors, (353), 152 states have internal predecessors, (353), 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 09:56:09,359 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 360 transitions. [2022-10-16 09:56:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-10-16 09:56:09,364 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:09,365 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 68, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:09,404 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 09:56:09,579 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,SelfDestructingSolverStorable14 [2022-10-16 09:56:09,580 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 09:56:09,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1251786768, now seen corresponding path program 4 times [2022-10-16 09:56:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:09,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629560408] [2022-10-16 09:56:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:09,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:56:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9355 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 09:56:23,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:23,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629560408] [2022-10-16 09:56:23,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629560408] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:56:23,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669352707] [2022-10-16 09:56:23,360 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 09:56:23,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:23,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:23,361 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 09:56:23,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process