/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-examples/standard_two_index_06.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:20:46,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:20:46,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:20:46,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:20:46,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:20:46,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:20:46,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:20:46,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:20:46,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:20:46,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:20:46,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:20:46,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:20:46,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:20:46,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:20:46,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:20:46,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:20:46,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:20:46,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:20:46,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:20:46,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:20:46,551 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 10:20:46,606 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:20:46,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:20:46,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:20:46,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:20:46,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:20:46,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:20:46,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:20:46,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:20:46,612 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:20:46,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:20:46,614 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:20:46,614 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:20:46,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:20:46,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:20:46,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:20:46,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:20:46,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:20:46,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:20:46,615 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:20:46,616 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:20:46,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:20:46,616 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:20:46,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:20:46,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:20:46,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:20:46,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:20:46,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:20:46,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:20:46,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:20:46,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:20:46,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:20:46,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:20:46,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:20:46,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:20:47,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:20:47,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:20:47,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:20:47,123 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:20:47,124 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:20:47,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_two_index_06.i [2022-10-16 10:20:47,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fa41bfee/1b956d9001e04cd99f3962ec95743d6d/FLAGb33f9b2c5 [2022-10-16 10:20:47,920 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:20:47,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_06.i [2022-10-16 10:20:47,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fa41bfee/1b956d9001e04cd99f3962ec95743d6d/FLAGb33f9b2c5 [2022-10-16 10:20:48,279 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fa41bfee/1b956d9001e04cd99f3962ec95743d6d [2022-10-16 10:20:48,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:20:48,288 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:20:48,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:20:48,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:20:48,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:20:48,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bab83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48, skipping insertion in model container [2022-10-16 10:20:48,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:20:48,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:20:48,508 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-examples/standard_two_index_06.i[814,827] [2022-10-16 10:20:48,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:20:48,538 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:20:48,555 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-examples/standard_two_index_06.i[814,827] [2022-10-16 10:20:48,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:20:48,585 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:20:48,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48 WrapperNode [2022-10-16 10:20:48,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:20:48,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:20:48,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:20:48,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:20:48,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,634 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2022-10-16 10:20:48,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:20:48,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:20:48,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:20:48,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:20:48,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,665 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:20:48,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:20:48,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:20:48,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:20:48,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (1/1) ... [2022-10-16 10:20:48,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:20:48,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:48,715 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 10:20:48,738 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 10:20:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:20:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:20:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:20:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:20:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:20:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:20:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:20:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:20:48,875 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:20:48,878 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:20:49,119 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:20:49,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:20:49,137 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:20:49,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:20:49 BoogieIcfgContainer [2022-10-16 10:20:49,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:20:49,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:20:49,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:20:49,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:20:49,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:20:48" (1/3) ... [2022-10-16 10:20:49,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723b348d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:20:49, skipping insertion in model container [2022-10-16 10:20:49,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:20:48" (2/3) ... [2022-10-16 10:20:49,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723b348d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:20:49, skipping insertion in model container [2022-10-16 10:20:49,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:20:49" (3/3) ... [2022-10-16 10:20:49,171 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_two_index_06.i [2022-10-16 10:20:49,211 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:20:49,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 10:20:49,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:20:49,355 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;@5d7e308d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:20:49,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 10:20:49,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 10:20:49,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:49,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 10:20:49,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:49,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:49,394 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-16 10:20:49,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:49,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746959060] [2022-10-16 10:20:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:49,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:49,760 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 10:20:49,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:49,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746959060] [2022-10-16 10:20:49,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746959060] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:20:49,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:20:49,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:20:49,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738595816] [2022-10-16 10:20:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:20:49,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:20:49,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:49,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:20:49,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:20:49,813 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:49,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:49,881 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2022-10-16 10:20:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:20:49,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-16 10:20:49,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:49,896 INFO L225 Difference]: With dead ends: 82 [2022-10-16 10:20:49,896 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 10:20:49,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:20:49,905 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:49,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 64 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:20:49,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 10:20:49,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-16 10:20:49,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 39 states have internal predecessors, (42), 0 states have call successors, (0), 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 10:20:49,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2022-10-16 10:20:49,948 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 4 [2022-10-16 10:20:49,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:49,949 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2022-10-16 10:20:49,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:49,949 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2022-10-16 10:20:49,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:20:49,950 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:49,950 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-16 10:20:49,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:20:49,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:49,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:49,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-16 10:20:49,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:49,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236233219] [2022-10-16 10:20:49,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:49,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:20:50,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:50,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236233219] [2022-10-16 10:20:50,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236233219] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:20:50,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:20:50,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:20:50,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419342255] [2022-10-16 10:20:50,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:20:50,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:20:50,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:50,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:20:50,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:20:50,034 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:50,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:50,077 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2022-10-16 10:20:50,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:20:50,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:20:50,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:50,079 INFO L225 Difference]: With dead ends: 61 [2022-10-16 10:20:50,079 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 10:20:50,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:20:50,082 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:50,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 33 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:20:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 10:20:50,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-10-16 10:20:50,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 37 states have internal predecessors, (40), 0 states have call successors, (0), 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 10:20:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-10-16 10:20:50,097 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 7 [2022-10-16 10:20:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:50,098 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-10-16 10:20:50,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-10-16 10:20:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:20:50,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:50,101 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-16 10:20:50,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:20:50,102 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:50,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:50,103 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-16 10:20:50,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:50,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9862685] [2022-10-16 10:20:50,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:50,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:50,260 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 10:20:50,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:50,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9862685] [2022-10-16 10:20:50,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9862685] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:50,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783857426] [2022-10-16 10:20:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:50,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:50,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:50,264 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 10:20:50,282 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 10:20:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:50,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:20:50,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:20:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:20:50,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:20:50,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783857426] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:20:50,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:20:50,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:20:50,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26148672] [2022-10-16 10:20:50,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:20:50,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:20:50,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:50,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:20:50,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:20:50,387 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:50,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:50,426 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-10-16 10:20:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:20:50,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:20:50,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:50,429 INFO L225 Difference]: With dead ends: 38 [2022-10-16 10:20:50,429 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 10:20:50,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 10:20:50,431 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 24 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:50,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:20:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 10:20:50,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-10-16 10:20:50,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.4) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:50,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-10-16 10:20:50,440 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 8 [2022-10-16 10:20:50,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:50,440 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-10-16 10:20:50,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:50,441 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-10-16 10:20:50,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:20:50,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:50,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:20:50,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:20:50,657 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 10:20:50,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:50,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1080649737, now seen corresponding path program 1 times [2022-10-16 10:20:50,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:50,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709001990] [2022-10-16 10:20:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:20:50,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:50,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709001990] [2022-10-16 10:20:50,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709001990] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:50,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597035516] [2022-10-16 10:20:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:50,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:50,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:50,813 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 10:20:50,831 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 10:20:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:50,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:20:50,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:20:50,930 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 10:20:50,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:20:50,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597035516] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:20:50,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:20:50,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:20:50,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824143841] [2022-10-16 10:20:50,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:20:50,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:20:50,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:50,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:20:50,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:20:50,936 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 10:20:51,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:51,003 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-10-16 10:20:51,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:20:51,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-10-16 10:20:51,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:51,005 INFO L225 Difference]: With dead ends: 52 [2022-10-16 10:20:51,005 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 10:20:51,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:20:51,008 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:51,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 27 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:20:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 10:20:51,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-10-16 10:20:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:51,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-10-16 10:20:51,017 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 11 [2022-10-16 10:20:51,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:51,018 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-10-16 10:20:51,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 10:20:51,018 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-10-16 10:20:51,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:20:51,019 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:51,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:20:51,059 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 10:20:51,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:20:51,234 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:51,235 INFO L85 PathProgramCache]: Analyzing trace with hash 859596587, now seen corresponding path program 1 times [2022-10-16 10:20:51,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:51,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168350329] [2022-10-16 10:20:51,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:51,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:20:51,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:51,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168350329] [2022-10-16 10:20:51,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168350329] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:51,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519211301] [2022-10-16 10:20:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:51,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:51,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:51,311 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 10:20:51,325 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 10:20:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:51,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:20:51,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:20:51,401 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 10:20:51,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:20:51,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519211301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:20:51,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:20:51,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:20:51,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403827750] [2022-10-16 10:20:51,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:20:51,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:20:51,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:51,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:20:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:20:51,405 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:51,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:51,440 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-10-16 10:20:51,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:20:51,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 10:20:51,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:51,442 INFO L225 Difference]: With dead ends: 46 [2022-10-16 10:20:51,442 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 10:20:51,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:20:51,444 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:51,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:20:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 10:20:51,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 10:20:51,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:51,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-10-16 10:20:51,453 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 12 [2022-10-16 10:20:51,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:51,453 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-10-16 10:20:51,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:51,454 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-10-16 10:20:51,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:20:51,454 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:51,455 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:20:51,480 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 10:20:51,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:51,671 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:51,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:51,672 INFO L85 PathProgramCache]: Analyzing trace with hash -483778513, now seen corresponding path program 1 times [2022-10-16 10:20:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:51,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323267121] [2022-10-16 10:20:51,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:51,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:20:51,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:51,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323267121] [2022-10-16 10:20:51,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323267121] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:51,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178080440] [2022-10-16 10:20:51,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:51,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:51,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:51,760 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 10:20:51,785 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 10:20:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:51,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:20:51,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:20:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:20:51,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:20:51,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:20:51,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178080440] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:20:51,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:20:51,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 10:20:51,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119928377] [2022-10-16 10:20:51,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:20:51,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:20:51,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:51,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:20:51,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:20:51,940 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 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 10:20:52,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:52,021 INFO L93 Difference]: Finished difference Result 103 states and 110 transitions. [2022-10-16 10:20:52,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:20:52,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 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 16 [2022-10-16 10:20:52,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:52,023 INFO L225 Difference]: With dead ends: 103 [2022-10-16 10:20:52,023 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 10:20:52,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:20:52,025 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 54 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:52,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 66 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:20:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 10:20:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2022-10-16 10:20:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2022-10-16 10:20:52,036 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 16 [2022-10-16 10:20:52,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:52,037 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2022-10-16 10:20:52,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 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 10:20:52,038 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2022-10-16 10:20:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:20:52,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:52,039 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:20:52,080 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 10:20:52,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:52,254 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:52,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:52,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1270889002, now seen corresponding path program 2 times [2022-10-16 10:20:52,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:52,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911923427] [2022-10-16 10:20:52,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:52,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 10:20:52,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:52,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911923427] [2022-10-16 10:20:52,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911923427] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:52,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401830034] [2022-10-16 10:20:52,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:20:52,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:52,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:52,358 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 10:20:52,385 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 10:20:52,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:20:52,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:20:52,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:20:52,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:20:52,503 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:20:52,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:20:52,592 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:20:52,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401830034] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:20:52,593 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:20:52,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-16 10:20:52,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005094074] [2022-10-16 10:20:52,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:20:52,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:20:52,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:52,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:20:52,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:20:52,596 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 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 10:20:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:52,914 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2022-10-16 10:20:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:20:52,915 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:20:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:52,916 INFO L225 Difference]: With dead ends: 125 [2022-10-16 10:20:52,916 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 10:20:52,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=225, Invalid=375, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:20:52,918 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 114 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:52,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 57 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:20:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 10:20:52,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-10-16 10:20:52,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 81 states have (on average 1.0740740740740742) internal successors, (87), 84 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:20:52,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2022-10-16 10:20:52,939 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 25 [2022-10-16 10:20:52,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:52,940 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2022-10-16 10:20:52,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 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 10:20:52,940 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2022-10-16 10:20:52,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:20:52,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:52,942 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:20:52,983 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 10:20:53,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:53,158 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:53,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1240077936, now seen corresponding path program 3 times [2022-10-16 10:20:53,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:53,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145390183] [2022-10-16 10:20:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:53,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:53,547 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 10:20:53,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:53,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145390183] [2022-10-16 10:20:53,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145390183] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:53,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418685996] [2022-10-16 10:20:53,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:20:53,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:53,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:53,550 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 10:20:53,581 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 10:20:53,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:20:53,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:20:53,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:20:53,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:20:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-10-16 10:20:53,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:20:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-10-16 10:20:53,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418685996] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:20:53,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:20:53,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2022-10-16 10:20:53,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521816786] [2022-10-16 10:20:53,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:20:53,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:20:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:53,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:20:53,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:20:53,868 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 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 10:20:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:54,183 INFO L93 Difference]: Finished difference Result 180 states and 196 transitions. [2022-10-16 10:20:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:20:54,183 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 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 48 [2022-10-16 10:20:54,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:54,186 INFO L225 Difference]: With dead ends: 180 [2022-10-16 10:20:54,187 INFO L226 Difference]: Without dead ends: 128 [2022-10-16 10:20:54,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2022-10-16 10:20:54,189 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 349 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:54,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 49 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:20:54,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-10-16 10:20:54,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 112. [2022-10-16 10:20:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 109 states have (on average 1.0825688073394495) internal successors, (118), 111 states have internal predecessors, (118), 0 states have call successors, (0), 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 10:20:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 118 transitions. [2022-10-16 10:20:54,204 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 118 transitions. Word has length 48 [2022-10-16 10:20:54,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:54,204 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 118 transitions. [2022-10-16 10:20:54,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 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 10:20:54,205 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2022-10-16 10:20:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 10:20:54,207 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:54,207 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:20:54,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 10:20:54,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:54,423 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:54,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1920685015, now seen corresponding path program 4 times [2022-10-16 10:20:54,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:54,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982065906] [2022-10-16 10:20:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:54,846 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:20:54,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:54,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982065906] [2022-10-16 10:20:54,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982065906] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:54,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839741450] [2022-10-16 10:20:54,847 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:20:54,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:54,849 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 10:20:54,858 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 10:20:54,950 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:20:54,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:20:54,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 10:20:54,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:20:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:20:55,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:20:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:20:55,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839741450] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:20:55,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:20:55,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-10-16 10:20:55,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484449982] [2022-10-16 10:20:55,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:20:55,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:20:55,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:55,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:20:55,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:20:55,316 INFO L87 Difference]: Start difference. First operand 112 states and 118 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 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 10:20:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:55,510 INFO L93 Difference]: Finished difference Result 245 states and 269 transitions. [2022-10-16 10:20:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:20:55,511 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 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) Word has length 71 [2022-10-16 10:20:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:55,512 INFO L225 Difference]: With dead ends: 245 [2022-10-16 10:20:55,512 INFO L226 Difference]: Without dead ends: 169 [2022-10-16 10:20:55,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:20:55,515 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 212 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:55,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 119 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:20:55,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-16 10:20:55,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 151. [2022-10-16 10:20:55,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 148 states have (on average 1.0472972972972974) internal successors, (155), 150 states have internal predecessors, (155), 0 states have call successors, (0), 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 10:20:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 155 transitions. [2022-10-16 10:20:55,531 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 155 transitions. Word has length 71 [2022-10-16 10:20:55,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:55,532 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 155 transitions. [2022-10-16 10:20:55,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 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 10:20:55,532 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 155 transitions. [2022-10-16 10:20:55,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 10:20:55,534 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:55,534 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:20:55,576 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 10:20:55,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:55,749 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:20:55,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:55,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1281609584, now seen corresponding path program 5 times [2022-10-16 10:20:55,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:55,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347631357] [2022-10-16 10:20:55,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:55,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:20:56,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:56,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347631357] [2022-10-16 10:20:56,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347631357] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:56,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393158797] [2022-10-16 10:20:56,949 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:20:56,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:56,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:56,952 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 10:20:56,957 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 10:21:02,338 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-10-16 10:21:02,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:02,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:21:02,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:02,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:03,414 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:03,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393158797] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:03,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:03,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-10-16 10:21:03,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456378471] [2022-10-16 10:21:03,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:03,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 10:21:03,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 10:21:03,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:21:03,419 INFO L87 Difference]: Start difference. First operand 151 states and 155 transitions. Second operand has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 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 10:21:03,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:03,904 INFO L93 Difference]: Finished difference Result 392 states and 428 transitions. [2022-10-16 10:21:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 10:21:03,905 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 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 110 [2022-10-16 10:21:03,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:03,907 INFO L225 Difference]: With dead ends: 392 [2022-10-16 10:21:03,907 INFO L226 Difference]: Without dead ends: 316 [2022-10-16 10:21:03,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:21:03,910 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 489 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:03,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 249 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:21:03,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-16 10:21:03,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 241. [2022-10-16 10:21:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 238 states have (on average 1.0294117647058822) internal successors, (245), 240 states have internal predecessors, (245), 0 states have call successors, (0), 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 10:21:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 245 transitions. [2022-10-16 10:21:03,956 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 245 transitions. Word has length 110 [2022-10-16 10:21:03,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:03,956 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 245 transitions. [2022-10-16 10:21:03,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 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 10:21:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 245 transitions. [2022-10-16 10:21:03,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 10:21:03,963 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:03,967 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:21:04,015 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 10:21:04,167 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,SelfDestructingSolverStorable9 [2022-10-16 10:21:04,169 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:04,170 INFO L85 PathProgramCache]: Analyzing trace with hash 556293520, now seen corresponding path program 6 times [2022-10-16 10:21:04,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:04,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209696743] [2022-10-16 10:21:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:04,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:07,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:07,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209696743] [2022-10-16 10:21:07,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209696743] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:07,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757957512] [2022-10-16 10:21:07,394 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:21:07,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:07,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:07,397 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 10:21:07,404 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 10:21:08,692 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2022-10-16 10:21:08,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:08,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:21:08,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 3725 trivial. 0 not checked. [2022-10-16 10:21:09,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:09,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 3725 trivial. 0 not checked. [2022-10-16 10:21:09,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757957512] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:09,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:09,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 8, 8] total 67 [2022-10-16 10:21:09,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783997630] [2022-10-16 10:21:09,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:09,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:21:09,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:09,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:21:09,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:21:09,622 INFO L87 Difference]: Start difference. First operand 241 states and 245 transitions. Second operand has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 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 10:21:12,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:12,442 INFO L93 Difference]: Finished difference Result 442 states and 469 transitions. [2022-10-16 10:21:12,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-10-16 10:21:12,442 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 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 188 [2022-10-16 10:21:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:12,445 INFO L225 Difference]: With dead ends: 442 [2022-10-16 10:21:12,445 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 10:21:12,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2845 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=5975, Invalid=11581, Unknown=0, NotChecked=0, Total=17556 [2022-10-16 10:21:12,455 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 949 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:12,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 95 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:21:12,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 10:21:12,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 316. [2022-10-16 10:21:12,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 313 states have (on average 1.0319488817891374) internal successors, (323), 315 states have internal predecessors, (323), 0 states have call successors, (0), 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 10:21:12,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 323 transitions. [2022-10-16 10:21:12,495 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 323 transitions. Word has length 188 [2022-10-16 10:21:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:12,496 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 323 transitions. [2022-10-16 10:21:12,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 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 10:21:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 323 transitions. [2022-10-16 10:21:12,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-10-16 10:21:12,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:12,501 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:21:12,538 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 10:21:12,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:12,715 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:12,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1404568745, now seen corresponding path program 7 times [2022-10-16 10:21:12,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:12,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100278875] [2022-10-16 10:21:12,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:12,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:15,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:15,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100278875] [2022-10-16 10:21:15,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100278875] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:15,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77264226] [2022-10-16 10:21:15,860 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:21:15,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:15,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:15,861 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 10:21:15,866 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 10:21:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:16,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:21:16,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:16,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:19,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77264226] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:19,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:19,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2022-10-16 10:21:19,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925289057] [2022-10-16 10:21:19,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:19,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-10-16 10:21:19,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:19,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-10-16 10:21:19,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:21:19,935 INFO L87 Difference]: Start difference. First operand 316 states and 323 transitions. Second operand has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 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 10:21:21,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:21,163 INFO L93 Difference]: Finished difference Result 805 states and 875 transitions. [2022-10-16 10:21:21,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-16 10:21:21,164 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 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 231 [2022-10-16 10:21:21,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:21,167 INFO L225 Difference]: With dead ends: 805 [2022-10-16 10:21:21,167 INFO L226 Difference]: Without dead ends: 645 [2022-10-16 10:21:21,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:21:21,172 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1681 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:21,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 577 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:21:21,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-10-16 10:21:21,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 492. [2022-10-16 10:21:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 489 states have (on average 1.016359918200409) internal successors, (497), 491 states have internal predecessors, (497), 0 states have call successors, (0), 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 10:21:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 497 transitions. [2022-10-16 10:21:21,197 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 497 transitions. Word has length 231 [2022-10-16 10:21:21,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:21,198 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 497 transitions. [2022-10-16 10:21:21,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 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 10:21:21,198 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 497 transitions. [2022-10-16 10:21:21,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-10-16 10:21:21,205 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:21,206 INFO L195 NwaCegarLoop]: trace histogram [104, 104, 104, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:21:21,233 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 10:21:21,419 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,SelfDestructingSolverStorable11 [2022-10-16 10:21:21,420 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:21,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:21,421 INFO L85 PathProgramCache]: Analyzing trace with hash -416360592, now seen corresponding path program 8 times [2022-10-16 10:21:21,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:21,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794538657] [2022-10-16 10:21:21,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:21,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:31,794 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:31,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:31,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794538657] [2022-10-16 10:21:31,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794538657] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:31,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522041579] [2022-10-16 10:21:31,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:21:31,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:31,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:31,801 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 10:21:31,802 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 10:21:32,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:21:32,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:32,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 106 conjunts are in the unsatisfiable core [2022-10-16 10:21:32,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:32,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:47,580 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:47,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522041579] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:47,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:47,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 213 [2022-10-16 10:21:47,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409217255] [2022-10-16 10:21:47,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:47,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-10-16 10:21:47,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-10-16 10:21:47,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:21:47,600 INFO L87 Difference]: Start difference. First operand 492 states and 497 transitions. Second operand has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 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 10:21:54,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:54,134 INFO L93 Difference]: Finished difference Result 1482 states and 1612 transitions. [2022-10-16 10:21:54,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-10-16 10:21:54,135 INFO L78 Accepts]: Start accepts. Automaton has has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 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 390 [2022-10-16 10:21:54,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:54,143 INFO L225 Difference]: With dead ends: 1482 [2022-10-16 10:21:54,143 INFO L226 Difference]: Without dead ends: 1305 [2022-10-16 10:21:54,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:21:54,150 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2711 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:54,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 1291 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 10:21:54,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-10-16 10:21:54,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 900. [2022-10-16 10:21:54,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 897 states have (on average 1.0289855072463767) internal successors, (923), 899 states have internal predecessors, (923), 0 states have call successors, (0), 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 10:21:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 923 transitions. [2022-10-16 10:21:54,194 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 923 transitions. Word has length 390 [2022-10-16 10:21:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:54,194 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 923 transitions. [2022-10-16 10:21:54,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 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 10:21:54,196 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 923 transitions. [2022-10-16 10:21:54,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2022-10-16 10:21:54,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:54,215 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:21:54,251 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 10:21:54,429 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,SelfDestructingSolverStorable12 [2022-10-16 10:21:54,430 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:54,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:54,431 INFO L85 PathProgramCache]: Analyzing trace with hash 950267536, now seen corresponding path program 9 times [2022-10-16 10:21:54,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:54,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029574851] [2022-10-16 10:21:54,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:54,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:33,321 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 66045 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:22:33,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:33,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029574851] [2022-10-16 10:22:33,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029574851] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:33,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120978537] [2022-10-16 10:22:33,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:22:33,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:33,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:33,323 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 10:22:33,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:22:40,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-10-16 10:22:40,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:22:40,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:22:40,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 66045 trivial. 0 not checked. [2022-10-16 10:22:42,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 66045 trivial. 0 not checked. [2022-10-16 10:22:45,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120978537] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:45,574 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:45,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 16, 16] total 243 [2022-10-16 10:22:45,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117535348] [2022-10-16 10:22:45,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:45,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 243 states [2022-10-16 10:22:45,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:45,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2022-10-16 10:22:45,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23073, Invalid=35733, Unknown=0, NotChecked=0, Total=58806 [2022-10-16 10:22:45,591 INFO L87 Difference]: Start difference. First operand 900 states and 923 transitions. Second operand has 243 states, 243 states have (on average 3.292181069958848) internal successors, (800), 243 states have internal predecessors, (800), 0 states have call successors, (0), 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 10:23:32,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:23:32,581 INFO L93 Difference]: Finished difference Result 1529 states and 1587 transitions. [2022-10-16 10:23:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-10-16 10:23:32,582 INFO L78 Accepts]: Start accepts. Automaton has has 243 states, 243 states have (on average 3.292181069958848) internal successors, (800), 243 states have internal predecessors, (800), 0 states have call successors, (0), 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 708 [2022-10-16 10:23:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:23:32,589 INFO L225 Difference]: With dead ends: 1529 [2022-10-16 10:23:32,589 INFO L226 Difference]: Without dead ends: 1262 [2022-10-16 10:23:32,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1935 GetRequests, 1386 SyntacticMatches, 0 SemanticMatches, 549 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53794 ImplicationChecksByTransitivity, 57.8s TimeCoverageRelationStatistics Valid=100413, Invalid=202637, Unknown=0, NotChecked=0, Total=303050 [2022-10-16 10:23:32,612 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4959 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 1525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4959 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1525 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:23:32,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4959 Valid, 251 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1525 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 10:23:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-10-16 10:23:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 991. [2022-10-16 10:23:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 988 states have (on average 1.0101214574898785) internal successors, (998), 990 states have internal predecessors, (998), 0 states have call successors, (0), 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 10:23:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 998 transitions. [2022-10-16 10:23:32,668 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 998 transitions. Word has length 708 [2022-10-16 10:23:32,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:23:32,670 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 998 transitions. [2022-10-16 10:23:32,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 243 states, 243 states have (on average 3.292181069958848) internal successors, (800), 243 states have internal predecessors, (800), 0 states have call successors, (0), 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 10:23:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 998 transitions. [2022-10-16 10:23:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2022-10-16 10:23:32,692 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:23:32,692 INFO L195 NwaCegarLoop]: trace histogram [211, 211, 211, 31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-10-16 10:23:32,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:23:32,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:23:32,907 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:23:32,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:23:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1574485673, now seen corresponding path program 10 times [2022-10-16 10:23:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:23:32,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037674464] [2022-10-16 10:23:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:23:32,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:23:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:24:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 68971 backedges. 0 proven. 66676 refuted. 0 times theorem prover too weak. 2295 trivial. 0 not checked. [2022-10-16 10:24:14,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:24:14,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037674464] [2022-10-16 10:24:14,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037674464] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:24:14,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354236950] [2022-10-16 10:24:14,217 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:24:14,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:24:14,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:24:14,218 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:24:14,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:24:14,862 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:24:14,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:24:14,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 213 conjunts are in the unsatisfiable core [2022-10-16 10:24:14,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:24:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 68971 backedges. 0 proven. 66676 refuted. 0 times theorem prover too weak. 2295 trivial. 0 not checked. [2022-10-16 10:24:15,740 INFO L328 TraceCheckSpWp]: Computing backward predicates...