/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-patterns/array11_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:14:13,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:14:13,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:14:13,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:14:13,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:14:13,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:14:13,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:14:13,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:14:13,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:14:13,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:14:13,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:14:13,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:14:13,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:14:13,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:14:13,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:14:13,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:14:13,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:14:13,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:14:13,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:14:13,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:14:13,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:14:13,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:14:13,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:14:13,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:14:13,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:14:13,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:14:13,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:14:13,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:14:13,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:14:13,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:14:13,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:14:13,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:14:13,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:14:13,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:14:13,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:14:13,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:14:13,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:14:13,386 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:14:13,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:14:13,387 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:14:13,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:14:13,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:14:13,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:14:13,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:14:13,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:14:13,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:14:13,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:14:13,389 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:14:13,389 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:14:13,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:14:13,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:14:13,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:14:13,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:14:13,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:14:13,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:14:13,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:14:13,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:14:13,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:14:13,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:14:13,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:14:13,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:14:13,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:14:13,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:14:13,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:14:13,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:14:13,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:14:13,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:14:13,860 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:14:13,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array11_pattern.c [2022-10-16 11:14:13,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a537f5cdc/005ec82305c54aafb080fd3acd5a0078/FLAG1ed590cc1 [2022-10-16 11:14:14,495 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:14:14,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array11_pattern.c [2022-10-16 11:14:14,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a537f5cdc/005ec82305c54aafb080fd3acd5a0078/FLAG1ed590cc1 [2022-10-16 11:14:14,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a537f5cdc/005ec82305c54aafb080fd3acd5a0078 [2022-10-16 11:14:14,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:14:14,869 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:14:14,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:14:14,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:14:14,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:14:14,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:14:14" (1/1) ... [2022-10-16 11:14:14,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5791b2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:14, skipping insertion in model container [2022-10-16 11:14:14,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:14:14" (1/1) ... [2022-10-16 11:14:14,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:14:14,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:14:15,178 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-patterns/array11_pattern.c[1357,1370] [2022-10-16 11:14:15,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:14:15,235 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:14:15,253 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-patterns/array11_pattern.c[1357,1370] [2022-10-16 11:14:15,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:14:15,306 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:14:15,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15 WrapperNode [2022-10-16 11:14:15,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:14:15,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:14:15,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:14:15,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:14:15,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,385 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2022-10-16 11:14:15,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:14:15,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:14:15,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:14:15,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:14:15,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,443 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:14:15,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:14:15,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:14:15,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:14:15,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (1/1) ... [2022-10-16 11:14:15,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:14:15,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:15,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:14:15,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:14:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:14:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 11:14:15,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 11:14:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:14:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:14:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:14:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:14:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:14:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:14:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:14:15,683 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:14:15,686 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:14:16,023 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:14:16,032 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:14:16,032 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 11:14:16,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:14:16 BoogieIcfgContainer [2022-10-16 11:14:16,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:14:16,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:14:16,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:14:16,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:14:16,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:14:14" (1/3) ... [2022-10-16 11:14:16,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a12cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:14:16, skipping insertion in model container [2022-10-16 11:14:16,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:14:15" (2/3) ... [2022-10-16 11:14:16,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a12cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:14:16, skipping insertion in model container [2022-10-16 11:14:16,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:14:16" (3/3) ... [2022-10-16 11:14:16,045 INFO L112 eAbstractionObserver]: Analyzing ICFG array11_pattern.c [2022-10-16 11:14:16,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:14:16,071 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-10-16 11:14:16,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:14:16,148 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;@1e18b275, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:14:16,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-10-16 11:14:16,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 47 states have (on average 1.7446808510638299) internal successors, (82), 71 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:16,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:14:16,172 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:16,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:16,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:16,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:16,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1132620689, now seen corresponding path program 1 times [2022-10-16 11:14:16,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:16,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921558381] [2022-10-16 11:14:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:16,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:14:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:16,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:16,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921558381] [2022-10-16 11:14:16,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921558381] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:14:16,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:14:16,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:14:16,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987620601] [2022-10-16 11:14:16,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:14:16,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:14:16,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:14:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:14:16,681 INFO L87 Difference]: Start difference. First operand has 75 states, 47 states have (on average 1.7446808510638299) internal successors, (82), 71 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:14:16,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:16,877 INFO L93 Difference]: Finished difference Result 212 states and 248 transitions. [2022-10-16 11:14:16,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:14:16,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-10-16 11:14:16,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:16,900 INFO L225 Difference]: With dead ends: 212 [2022-10-16 11:14:16,900 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 11:14:16,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:14:16,915 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 65 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:16,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 209 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:14:16,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 11:14:16,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 72. [2022-10-16 11:14:16,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 68 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:16,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2022-10-16 11:14:17,002 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 11 [2022-10-16 11:14:17,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:17,003 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2022-10-16 11:14:17,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:14:17,006 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2022-10-16 11:14:17,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:14:17,008 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:17,009 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:17,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:14:17,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:17,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:17,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1200814751, now seen corresponding path program 1 times [2022-10-16 11:14:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:17,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672733433] [2022-10-16 11:14:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:17,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:17,074 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:14:17,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [672249785] [2022-10-16 11:14:17,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:17,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:17,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:17,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:14:17,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:14:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:17,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 11:14:17,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:17,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:14:17,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:17,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672733433] [2022-10-16 11:14:17,265 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:14:17,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672249785] [2022-10-16 11:14:17,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672249785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:14:17,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:14:17,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:14:17,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146853430] [2022-10-16 11:14:17,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:14:17,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:14:17,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:14:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:14:17,269 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:17,378 INFO L93 Difference]: Finished difference Result 146 states and 155 transitions. [2022-10-16 11:14:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 11:14:17,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-10-16 11:14:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:17,380 INFO L225 Difference]: With dead ends: 146 [2022-10-16 11:14:17,380 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 11:14:17,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:14:17,383 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 84 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:17,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 201 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:14:17,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 11:14:17,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 74. [2022-10-16 11:14:17,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 69 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2022-10-16 11:14:17,397 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 16 [2022-10-16 11:14:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:17,397 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2022-10-16 11:14:17,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2022-10-16 11:14:17,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 11:14:17,399 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:17,399 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:17,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:14:17,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:17,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:17,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1637437427, now seen corresponding path program 1 times [2022-10-16 11:14:17,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:17,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645599860] [2022-10-16 11:14:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:17,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:17,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:14:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:17,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:17,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645599860] [2022-10-16 11:14:17,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645599860] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:14:17,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318672206] [2022-10-16 11:14:17,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:17,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:17,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:17,842 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:14:17,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:14:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:17,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:14:17,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:17,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:14:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:18,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318672206] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:14:18,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:14:18,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:14:18,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574681522] [2022-10-16 11:14:18,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:14:18,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:14:18,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:18,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:14:18,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:14:18,033 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:14:18,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:18,197 INFO L93 Difference]: Finished difference Result 190 states and 207 transitions. [2022-10-16 11:14:18,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:14:18,198 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-10-16 11:14:18,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:18,201 INFO L225 Difference]: With dead ends: 190 [2022-10-16 11:14:18,201 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 11:14:18,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:14:18,204 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 215 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:18,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 389 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:14:18,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 11:14:18,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 85. [2022-10-16 11:14:18,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 80 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:18,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-10-16 11:14:18,218 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 15 [2022-10-16 11:14:18,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:18,219 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-10-16 11:14:18,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:14:18,219 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-10-16 11:14:18,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:14:18,220 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:18,220 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:18,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:14:18,430 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,SelfDestructingSolverStorable2 [2022-10-16 11:14:18,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:18,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:18,433 INFO L85 PathProgramCache]: Analyzing trace with hash 779047363, now seen corresponding path program 1 times [2022-10-16 11:14:18,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:18,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334246407] [2022-10-16 11:14:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:18,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:18,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:14:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:18,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:18,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334246407] [2022-10-16 11:14:18,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334246407] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:14:18,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942112340] [2022-10-16 11:14:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:18,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:18,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:18,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:14:18,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:14:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:18,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:14:18,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:18,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:14:18,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942112340] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:14:18,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:14:18,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:14:18,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129055295] [2022-10-16 11:14:18,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:14:18,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:14:18,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:18,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:14:18,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:14:18,676 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:14:18,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:18,734 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2022-10-16 11:14:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:14:18,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-16 11:14:18,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:18,737 INFO L225 Difference]: With dead ends: 98 [2022-10-16 11:14:18,737 INFO L226 Difference]: Without dead ends: 97 [2022-10-16 11:14:18,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:14:18,743 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 80 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:18,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 209 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:14:18,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-16 11:14:18,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 84. [2022-10-16 11:14:18,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.4576271186440677) internal successors, (86), 79 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2022-10-16 11:14:18,770 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 16 [2022-10-16 11:14:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:18,771 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2022-10-16 11:14:18,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:14:18,771 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2022-10-16 11:14:18,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:14:18,774 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:18,774 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:18,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:14:18,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:18,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:18,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:18,992 INFO L85 PathProgramCache]: Analyzing trace with hash -128834653, now seen corresponding path program 1 times [2022-10-16 11:14:18,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:18,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334434383] [2022-10-16 11:14:18,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:18,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:19,013 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:14:19,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410337892] [2022-10-16 11:14:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:19,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:19,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:19,018 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:14:19,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:14:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:19,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:14:19,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:14:19,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:14:19,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:19,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334434383] [2022-10-16 11:14:19,138 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:14:19,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410337892] [2022-10-16 11:14:19,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410337892] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:14:19,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:14:19,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 11:14:19,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996669110] [2022-10-16 11:14:19,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:14:19,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:14:19,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:19,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:14:19,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:14:19,143 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:19,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:19,255 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2022-10-16 11:14:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:14:19,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-10-16 11:14:19,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:19,257 INFO L225 Difference]: With dead ends: 85 [2022-10-16 11:14:19,257 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 11:14:19,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:14:19,258 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 49 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:19,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 136 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:14:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 11:14:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2022-10-16 11:14:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 74 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:19,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2022-10-16 11:14:19,267 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 20 [2022-10-16 11:14:19,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:19,267 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2022-10-16 11:14:19,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:19,268 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2022-10-16 11:14:19,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 11:14:19,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:19,269 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:19,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:14:19,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:19,485 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:19,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:19,486 INFO L85 PathProgramCache]: Analyzing trace with hash 301093117, now seen corresponding path program 1 times [2022-10-16 11:14:19,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:19,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186351869] [2022-10-16 11:14:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:19,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:19,516 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:14:19,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255364537] [2022-10-16 11:14:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:19,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:19,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:19,522 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 11:14:19,544 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 11:14:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:19,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:14:19,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:14:19,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:14:19,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:19,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186351869] [2022-10-16 11:14:19,655 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:14:19,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255364537] [2022-10-16 11:14:19,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255364537] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:14:19,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:14:19,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:14:19,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190784250] [2022-10-16 11:14:19,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:14:19,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:14:19,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:19,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:14:19,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:14:19,657 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:19,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:19,692 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2022-10-16 11:14:19,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:14:19,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-10-16 11:14:19,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:19,694 INFO L225 Difference]: With dead ends: 80 [2022-10-16 11:14:19,694 INFO L226 Difference]: Without dead ends: 75 [2022-10-16 11:14:19,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:14:19,696 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 83 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:19,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 58 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:14:19,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-16 11:14:19,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2022-10-16 11:14:19,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 69 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:19,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2022-10-16 11:14:19,704 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 21 [2022-10-16 11:14:19,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:19,704 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2022-10-16 11:14:19,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2022-10-16 11:14:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 11:14:19,709 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:19,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:19,762 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 11:14:19,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:19,925 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:19,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:19,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1555964075, now seen corresponding path program 1 times [2022-10-16 11:14:19,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:19,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115882085] [2022-10-16 11:14:19,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:19,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:19,953 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:14:19,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272620572] [2022-10-16 11:14:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:19,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:19,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:19,962 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 11:14:19,964 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 11:14:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:20,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:14:20,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:14:20,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:14:20,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:20,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115882085] [2022-10-16 11:14:20,072 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:14:20,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272620572] [2022-10-16 11:14:20,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272620572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:14:20,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:14:20,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:14:20,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141734929] [2022-10-16 11:14:20,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:14:20,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:14:20,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:20,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:14:20,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:14:20,075 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 11:14:20,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:20,100 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-10-16 11:14:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:14:20,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-10-16 11:14:20,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:20,102 INFO L225 Difference]: With dead ends: 74 [2022-10-16 11:14:20,102 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 11:14:20,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 11:14:20,104 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:20,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 47 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:14:20,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 11:14:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-10-16 11:14:20,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 66 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2022-10-16 11:14:20,127 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 28 [2022-10-16 11:14:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:20,127 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2022-10-16 11:14:20,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 11:14:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2022-10-16 11:14:20,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:14:20,130 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:20,130 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:20,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:14:20,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:20,345 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:20,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:20,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1542965633, now seen corresponding path program 2 times [2022-10-16 11:14:20,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:20,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310722540] [2022-10-16 11:14:20,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:20,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:14:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:20,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:20,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310722540] [2022-10-16 11:14:20,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310722540] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:14:20,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729474615] [2022-10-16 11:14:20,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:14:20,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:20,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:20,677 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 11:14:20,699 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 11:14:20,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:14:20,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:14:20,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:14:20,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:14:20,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:14:20,905 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:14:20,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729474615] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:14:20,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:14:20,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 11:14:20,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693565917] [2022-10-16 11:14:20,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:14:20,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:14:20,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:20,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:14:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:14:20,911 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:14:21,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:21,255 INFO L93 Difference]: Finished difference Result 180 states and 204 transitions. [2022-10-16 11:14:21,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:14:21,256 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 27 [2022-10-16 11:14:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:21,258 INFO L225 Difference]: With dead ends: 180 [2022-10-16 11:14:21,258 INFO L226 Difference]: Without dead ends: 179 [2022-10-16 11:14:21,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 11:14:21,260 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 423 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:21,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 311 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:14:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-10-16 11:14:21,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 56. [2022-10-16 11:14:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.25) internal successors, (55), 51 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2022-10-16 11:14:21,268 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 27 [2022-10-16 11:14:21,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:21,269 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2022-10-16 11:14:21,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:14:21,269 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2022-10-16 11:14:21,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:14:21,270 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:21,271 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:21,309 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 11:14:21,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:21,485 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:21,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash 357184373, now seen corresponding path program 1 times [2022-10-16 11:14:21,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:21,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918178795] [2022-10-16 11:14:21,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:21,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:21,511 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:14:21,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928545118] [2022-10-16 11:14:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:21,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:21,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:21,513 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 11:14:21,519 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 11:14:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:21,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 11:14:21,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:21,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:14:21,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-10-16 11:14:21,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 11:14:21,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-10-16 11:14:23,940 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (+ |ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |ULTIMATE.start_main_~index~0#1| 4294967296) 4)) 0) [2022-10-16 11:14:25,945 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |ULTIMATE.start_main_~index~0#1| 4294967296) 4)) 17179869184) [2022-10-16 11:14:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:14:25,947 INFO L244 Elim1Store]: Index analysis took 4010 ms [2022-10-16 11:14:26,196 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-10-16 11:14:26,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-10-16 11:14:30,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:14:30,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:14:30,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 43 [2022-10-16 11:14:31,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:14:31,736 INFO L356 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2022-10-16 11:14:31,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 49 [2022-10-16 11:14:32,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-16 11:14:32,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2022-10-16 11:14:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:32,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:14:32,681 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_268 (Array Int Int))) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_268) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808)) is different from false [2022-10-16 11:14:39,637 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_268 (Array Int Int))) (let ((.cse0 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (< |aux_mod_ULTIMATE.start_main_~index~0#1_49| 0) (< .cse0 (+ v_ArrVal_266 4294967296)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~index~0#1_49|) (<= .cse0 2147483647) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_266)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_268) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808)))) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_268 (Array Int Int))) (let ((.cse2 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (<= |aux_mod_ULTIMATE.start_main_~index~0#1_49| 2147483647) (< 2147483647 .cse2) (< (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse1 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_266)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_268) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~index~0#1_49|) (< .cse2 v_ArrVal_266)))) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_268 (Array Int Int))) (let ((.cse3 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (<= |aux_mod_ULTIMATE.start_main_~index~0#1_49| 2147483647) (< (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse1 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_266)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_268) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808) (< .cse3 (+ v_ArrVal_266 4294967296)) (<= .cse3 2147483647) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~index~0#1_49|)))) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_268 (Array Int Int))) (let ((.cse4 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (< |aux_mod_ULTIMATE.start_main_~index~0#1_49| 0) (< 2147483647 .cse4) (< 2147483647 |aux_mod_ULTIMATE.start_main_~index~0#1_49|) (< .cse4 v_ArrVal_266) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_266)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_268) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808)))))) is different from false [2022-10-16 11:14:49,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:49,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918178795] [2022-10-16 11:14:49,350 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:14:49,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928545118] [2022-10-16 11:14:49,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928545118] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:14:49,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:14:49,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-10-16 11:14:49,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460423444] [2022-10-16 11:14:49,351 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:14:49,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 11:14:49,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:49,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 11:14:49,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=102, Unknown=2, NotChecked=42, Total=182 [2022-10-16 11:14:49,352 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:51,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-16 11:14:51,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:51,428 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2022-10-16 11:14:51,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 11:14:51,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2022-10-16 11:14:51,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:51,431 INFO L225 Difference]: With dead ends: 87 [2022-10-16 11:14:51,431 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 11:14:51,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=116, Unknown=2, NotChecked=46, Total=210 [2022-10-16 11:14:51,432 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 38 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:51,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 273 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 1 Unknown, 77 Unchecked, 2.0s Time] [2022-10-16 11:14:51,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 11:14:51,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2022-10-16 11:14:51,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 70 states have (on average 1.2) internal successors, (84), 77 states have internal predecessors, (84), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:14:51,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2022-10-16 11:14:51,442 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 35 [2022-10-16 11:14:51,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:51,442 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2022-10-16 11:14:51,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:14:51,442 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2022-10-16 11:14:51,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 11:14:51,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:51,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:51,473 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 11:14:51,644 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,SelfDestructingSolverStorable8 [2022-10-16 11:14:51,645 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:14:51,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:51,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1812186213, now seen corresponding path program 1 times [2022-10-16 11:14:51,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:51,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198994484] [2022-10-16 11:14:51,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:51,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:51,662 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:14:51,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574720287] [2022-10-16 11:14:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:51,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:51,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:51,663 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 11:14:51,666 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 11:14:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:14:51,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 11:14:51,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:51,752 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:14:51,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-10-16 11:14:51,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 11:14:52,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-10-16 11:14:52,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:14:54,178 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (+ |ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |ULTIMATE.start_main_~index~0#1| 4294967296) 4)) 0) [2022-10-16 11:14:54,178 INFO L244 Elim1Store]: Index analysis took 2003 ms [2022-10-16 11:14:56,266 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-10-16 11:14:56,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-10-16 11:15:02,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 89 [2022-10-16 11:15:19,573 WARN L233 SmtUtils]: Spent 10.48s on a formula simplification. DAG size of input: 77 DAG size of output: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:15:19,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 68 [2022-10-16 11:15:24,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 56 [2022-10-16 11:15:24,223 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:15:24,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 57 [2022-10-16 11:15:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:24,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:15:24,545 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_306 (Array Int Int))) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) is different from false [2022-10-16 11:15:35,540 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_306 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_304 Int)) (let ((.cse1 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_304)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (< v_ArrVal_304 .cse1) (< |aux_mod_ULTIMATE.start_main_~index~0#1_49| 0) (< 2147483647 .cse1) (< 2147483647 |aux_mod_ULTIMATE.start_main_~index~0#1_49|)))) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_306 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_304 Int)) (let ((.cse2 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_304)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (< |aux_mod_ULTIMATE.start_main_~index~0#1_49| 0) (< (+ v_ArrVal_304 4294967296) .cse2) (< 2147483647 |aux_mod_ULTIMATE.start_main_~index~0#1_49|) (<= .cse2 2147483647)))) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_306 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_304 Int)) (let ((.cse3 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse0 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_304)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (<= |aux_mod_ULTIMATE.start_main_~index~0#1_49| 2147483647) (< (+ v_ArrVal_304 4294967296) .cse3) (<= .cse3 2147483647) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~index~0#1_49|)))) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_306 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_304 Int)) (let ((.cse4 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (< v_ArrVal_304 .cse4) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse0 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_304)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_306) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (<= |aux_mod_ULTIMATE.start_main_~index~0#1_49| 2147483647) (< 2147483647 .cse4) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~index~0#1_49|)))))) is different from false [2022-10-16 11:15:46,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:46,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198994484] [2022-10-16 11:15:46,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:46,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574720287] [2022-10-16 11:15:46,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574720287] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:15:46,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:15:46,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-10-16 11:15:46,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294129080] [2022-10-16 11:15:46,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:15:46,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 11:15:46,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:46,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 11:15:46,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=101, Unknown=4, NotChecked=42, Total=182 [2022-10-16 11:15:46,145 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:15:48,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-16 11:15:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:48,610 INFO L93 Difference]: Finished difference Result 120 states and 130 transitions. [2022-10-16 11:15:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 11:15:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2022-10-16 11:15:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:48,611 INFO L225 Difference]: With dead ends: 120 [2022-10-16 11:15:48,611 INFO L226 Difference]: Without dead ends: 119 [2022-10-16 11:15:48,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=53, Invalid=133, Unknown=4, NotChecked=50, Total=240 [2022-10-16 11:15:48,614 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 61 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:48,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 270 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 1 Unknown, 95 Unchecked, 2.2s Time] [2022-10-16 11:15:48,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-10-16 11:15:48,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2022-10-16 11:15:48,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 93 states have (on average 1.1827956989247312) internal successors, (110), 100 states have internal predecessors, (110), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 11:15:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2022-10-16 11:15:48,634 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 36 [2022-10-16 11:15:48,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:48,637 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2022-10-16 11:15:48,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:15:48,637 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2022-10-16 11:15:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 11:15:48,638 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:48,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:48,669 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 11:15:48,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 11:15:48,842 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:48,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash -343197641, now seen corresponding path program 1 times [2022-10-16 11:15:48,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:48,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107532468] [2022-10-16 11:15:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:48,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:48,866 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:48,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918354359] [2022-10-16 11:15:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:48,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:48,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:48,868 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 11:15:48,870 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 11:15:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:48,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 11:15:48,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:48,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:15:48,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:15:48,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-10-16 11:15:48,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 11:15:49,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 11:15:49,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-10-16 11:15:49,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:15:49,139 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-10-16 11:15:49,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-10-16 11:15:49,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:15:49,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:15:49,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:15:49,361 INFO L356 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2022-10-16 11:15:49,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 71 [2022-10-16 11:15:49,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:15:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:49,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:15:51,882 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base|))) (and (forall ((v_ArrVal_344 Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| Int) (|aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| Int)) (let ((.cse0 (+ (* |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| 4294967296) |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60|))) (or (> 0 |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60|) (< .cse0 0) (< (select (store .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* (mod |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| 4294967296) 4)) v_ArrVal_344) |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1) (>= |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| 4294967296) (< |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| v_ArrVal_344) (< 2147483647 .cse0)))) (forall ((v_ArrVal_344 Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int)) (or (< (select (store .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_344) |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1) (> 0 |aux_mod_ULTIMATE.start_main_~index~0#1_49|) (>= |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) (< |aux_mod_ULTIMATE.start_main_~index~0#1_49| (+ v_ArrVal_344 4294967296)))))) is different from false [2022-10-16 11:15:52,016 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_344 Int) (|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int) (v_ArrVal_343 (Array Int Int))) (or (< (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_343) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_344) |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1) (> 0 |aux_mod_ULTIMATE.start_main_~index~0#1_49|) (>= |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) (< |aux_mod_ULTIMATE.start_main_~index~0#1_49| (+ v_ArrVal_344 4294967296)))) (forall ((v_ArrVal_344 Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| Int) (|aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| Int) (v_ArrVal_343 (Array Int Int))) (let ((.cse0 (+ (* |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| 4294967296) |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60|))) (or (> 0 |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60|) (< .cse0 0) (< (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_343) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* (mod |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| 4294967296) 4)) v_ArrVal_344) |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1) (>= |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| 4294967296) (< |aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_49_60| v_ArrVal_344) (< 2147483647 .cse0))))) is different from false [2022-10-16 11:15:52,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:52,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107532468] [2022-10-16 11:15:52,404 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:52,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918354359] [2022-10-16 11:15:52,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918354359] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:15:52,405 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:15:52,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2022-10-16 11:15:52,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108456316] [2022-10-16 11:15:52,405 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:15:52,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:15:52,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:52,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:15:52,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=165, Unknown=2, NotChecked=54, Total=272 [2022-10-16 11:15:52,407 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:15:52,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:52,629 INFO L93 Difference]: Finished difference Result 177 states and 191 transitions. [2022-10-16 11:15:52,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 11:15:52,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-10-16 11:15:52,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:52,632 INFO L225 Difference]: With dead ends: 177 [2022-10-16 11:15:52,632 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 11:15:52,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=95, Invalid=253, Unknown=2, NotChecked=70, Total=420 [2022-10-16 11:15:52,633 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 83 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:52,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 363 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 142 Invalid, 0 Unknown, 6 Unchecked, 0.1s Time] [2022-10-16 11:15:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 11:15:52,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 144. [2022-10-16 11:15:52,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 133 states have internal predecessors, (150), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 11:15:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 160 transitions. [2022-10-16 11:15:52,649 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 160 transitions. Word has length 37 [2022-10-16 11:15:52,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:52,650 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 160 transitions. [2022-10-16 11:15:52,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:15:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 160 transitions. [2022-10-16 11:15:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:15:52,651 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:52,652 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:52,680 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 11:15:52,866 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,SelfDestructingSolverStorable10 [2022-10-16 11:15:52,867 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2049192163, now seen corresponding path program 1 times [2022-10-16 11:15:52,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:52,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419771680] [2022-10-16 11:15:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:52,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:52,881 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:52,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739107527] [2022-10-16 11:15:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:52,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:52,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:52,883 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 11:15:52,913 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 11:15:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:52,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 11:15:52,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:52,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:15:52,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:15:52,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-10-16 11:15:52,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 11:15:53,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 11:15:53,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-10-16 11:15:53,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:15:53,159 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-10-16 11:15:53,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-10-16 11:15:53,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 12 [2022-10-16 11:15:53,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:15:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:53,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:16:00,869 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_381 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_381) |c_ULTIMATE.start_main_~#array2~0#1.base|) |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1))) is different from false [2022-10-16 11:16:00,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:00,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419771680] [2022-10-16 11:16:00,888 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:00,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739107527] [2022-10-16 11:16:00,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739107527] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:16:00,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:16:00,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-10-16 11:16:00,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537250070] [2022-10-16 11:16:00,889 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:16:00,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 11:16:00,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:00,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 11:16:00,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=119, Unknown=2, NotChecked=22, Total=182 [2022-10-16 11:16:00,891 INFO L87 Difference]: Start difference. First operand 144 states and 160 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:01,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:01,007 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2022-10-16 11:16:01,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 11:16:01,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-10-16 11:16:01,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:01,009 INFO L225 Difference]: With dead ends: 150 [2022-10-16 11:16:01,009 INFO L226 Difference]: Without dead ends: 149 [2022-10-16 11:16:01,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=57, Invalid=155, Unknown=2, NotChecked=26, Total=240 [2022-10-16 11:16:01,011 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 52 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:01,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 222 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2022-10-16 11:16:01,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-10-16 11:16:01,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2022-10-16 11:16:01,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.186046511627907) internal successors, (153), 136 states have internal predecessors, (153), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 11:16:01,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 163 transitions. [2022-10-16 11:16:01,027 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 163 transitions. Word has length 38 [2022-10-16 11:16:01,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:01,027 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 163 transitions. [2022-10-16 11:16:01,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:01,027 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 163 transitions. [2022-10-16 11:16:01,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 11:16:01,029 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:01,029 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:01,058 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 11:16:01,242 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,SelfDestructingSolverStorable11 [2022-10-16 11:16:01,243 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:16:01,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:01,244 INFO L85 PathProgramCache]: Analyzing trace with hash -785473325, now seen corresponding path program 1 times [2022-10-16 11:16:01,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:01,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961887413] [2022-10-16 11:16:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:01,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:01,255 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:01,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954846633] [2022-10-16 11:16:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:01,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:01,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:01,257 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 11:16:01,268 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 11:16:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:01,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 11:16:01,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:16:01,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:16:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:16:01,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:01,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961887413] [2022-10-16 11:16:01,555 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:01,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954846633] [2022-10-16 11:16:01,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954846633] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:16:01,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:16:01,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 11:16:01,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30672851] [2022-10-16 11:16:01,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:16:01,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:16:01,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:01,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:16:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:16:01,559 INFO L87 Difference]: Start difference. First operand 147 states and 163 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:16:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:01,807 INFO L93 Difference]: Finished difference Result 289 states and 312 transitions. [2022-10-16 11:16:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:16:01,807 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-10-16 11:16:01,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:01,810 INFO L225 Difference]: With dead ends: 289 [2022-10-16 11:16:01,810 INFO L226 Difference]: Without dead ends: 238 [2022-10-16 11:16:01,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:16:01,815 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 186 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:01,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 299 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:16:01,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-10-16 11:16:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 159. [2022-10-16 11:16:01,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 139 states have (on average 1.1654676258992807) internal successors, (162), 146 states have internal predecessors, (162), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 11:16:01,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 174 transitions. [2022-10-16 11:16:01,835 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 174 transitions. Word has length 39 [2022-10-16 11:16:01,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:01,835 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 174 transitions. [2022-10-16 11:16:01,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:16:01,836 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 174 transitions. [2022-10-16 11:16:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 11:16:01,836 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:01,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:01,871 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 11:16:02,050 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,SelfDestructingSolverStorable12 [2022-10-16 11:16:02,051 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:16:02,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:02,051 INFO L85 PathProgramCache]: Analyzing trace with hash -536361999, now seen corresponding path program 2 times [2022-10-16 11:16:02,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:02,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822012350] [2022-10-16 11:16:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:02,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:02,066 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:02,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350172596] [2022-10-16 11:16:02,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:16:02,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:02,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:02,067 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 11:16:02,088 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 11:16:02,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:16:02,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:16:02,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 11:16:02,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:02,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:16:02,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-10-16 11:16:02,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-10-16 11:16:02,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:16:02,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-10-16 11:16:02,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-10-16 11:16:02,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 59 [2022-10-16 11:16:02,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:16:02,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:16:04,793 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (+ |ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |ULTIMATE.start_main_~index~0#1| 4294967296) 4)) 0) [2022-10-16 11:16:04,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:16:05,039 INFO L244 Elim1Store]: Index analysis took 2251 ms [2022-10-16 11:16:05,050 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-10-16 11:16:05,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 107 [2022-10-16 11:16:09,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 12 [2022-10-16 11:17:05,568 WARN L233 SmtUtils]: Spent 36.47s on a formula simplification. DAG size of input: 84 DAG size of output: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:17:05,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 104 [2022-10-16 11:17:18,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 85 [2022-10-16 11:17:18,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:18,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:18,207 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:17:18,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 99 [2022-10-16 11:17:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:17:18,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:17:18,443 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_466 (Array Int Int))) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_466) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808)) is different from false [2022-10-16 11:17:20,994 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int)) (or (< |aux_mod_ULTIMATE.start_main_~index~0#1_49| 0) (forall ((v_ArrVal_464 Int) (v_ArrVal_466 (Array Int Int))) (or (forall ((|ULTIMATE.start_main_~num~0#1| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int)) (let ((.cse0 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (not (<= .cse0 2147483647)) (not (<= v_ArrVal_464 .cse0))))) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_464)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_466) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808))) (< 2147483647 |aux_mod_ULTIMATE.start_main_~index~0#1_49|))) (forall ((|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int)) (or (<= |aux_mod_ULTIMATE.start_main_~index~0#1_49| 2147483647) (forall ((v_ArrVal_464 Int) (v_ArrVal_466 (Array Int Int))) (or (< (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse1 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_464)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_466) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int)) (let ((.cse2 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (not (<= .cse2 2147483647)) (not (<= v_ArrVal_464 .cse2))))))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~index~0#1_49|))) (forall ((|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int)) (or (forall ((v_ArrVal_464 Int) (v_ArrVal_466 (Array Int Int))) (or (forall ((|ULTIMATE.start_main_~num~0#1| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int)) (let ((.cse3 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (<= .cse3 2147483647) (not (<= (+ v_ArrVal_464 4294967296) .cse3))))) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_464)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_466) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808))) (< |aux_mod_ULTIMATE.start_main_~index~0#1_49| 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~index~0#1_49|))) (forall ((|aux_mod_ULTIMATE.start_main_~index~0#1_49| Int)) (or (<= |aux_mod_ULTIMATE.start_main_~index~0#1_49| 2147483647) (forall ((v_ArrVal_464 Int) (v_ArrVal_466 (Array Int Int))) (or (forall ((|ULTIMATE.start_main_~num~0#1| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_49| Int)) (let ((.cse4 (mod (* |ULTIMATE.start_main_~num~0#1| (* (* (* (+ (* |aux_div_ULTIMATE.start_main_~index~0#1_49| 4294967296) |aux_mod_ULTIMATE.start_main_~index~0#1_49|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|) |ULTIMATE.start_main_~num~0#1|)) 4294967296))) (or (<= .cse4 2147483647) (not (<= (+ v_ArrVal_464 4294967296) .cse4))))) (< (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse1 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |aux_mod_ULTIMATE.start_main_~index~0#1_49| 4294967296) 4)) v_ArrVal_464)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_466) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~index~0#1_49|))))) is different from false [2022-10-16 11:17:26,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:26,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822012350] [2022-10-16 11:17:26,144 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:26,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350172596] [2022-10-16 11:17:26,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350172596] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:17:26,144 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:17:26,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-10-16 11:17:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060078264] [2022-10-16 11:17:26,145 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:17:26,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:17:26,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:26,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:17:26,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=161, Unknown=13, NotChecked=54, Total=272 [2022-10-16 11:17:26,146 INFO L87 Difference]: Start difference. First operand 159 states and 174 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:36,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-16 11:17:38,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-16 11:17:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:38,445 INFO L93 Difference]: Finished difference Result 220 states and 242 transitions. [2022-10-16 11:17:38,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 11:17:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2022-10-16 11:17:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:38,447 INFO L225 Difference]: With dead ends: 220 [2022-10-16 11:17:38,447 INFO L226 Difference]: Without dead ends: 219 [2022-10-16 11:17:38,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 69.8s TimeCoverageRelationStatistics Valid=58, Invalid=205, Unknown=17, NotChecked=62, Total=342 [2022-10-16 11:17:38,449 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 43 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 224 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:17:38,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 509 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 2 Unknown, 224 Unchecked, 4.1s Time] [2022-10-16 11:17:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-10-16 11:17:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 192. [2022-10-16 11:17:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 170 states have (on average 1.1588235294117648) internal successors, (197), 177 states have internal predecessors, (197), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 11:17:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 211 transitions. [2022-10-16 11:17:38,474 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 211 transitions. Word has length 39 [2022-10-16 11:17:38,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:38,474 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 211 transitions. [2022-10-16 11:17:38,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:38,475 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 211 transitions. [2022-10-16 11:17:38,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 11:17:38,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:38,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:17:38,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:17:38,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 11:17:38,677 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:17:38,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:38,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2116323999, now seen corresponding path program 1 times [2022-10-16 11:17:38,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:38,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535682791] [2022-10-16 11:17:38,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:38,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:38,698 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:38,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335772465] [2022-10-16 11:17:38,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:38,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:38,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:38,700 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:17:38,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 11:17:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:17:38,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:17:38,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:17:38,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:17:38,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:38,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535682791] [2022-10-16 11:17:38,785 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:38,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335772465] [2022-10-16 11:17:38,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335772465] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:17:38,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:17:38,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:17:38,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554648643] [2022-10-16 11:17:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:17:38,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:17:38,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:38,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:17:38,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:17:38,788 INFO L87 Difference]: Start difference. First operand 192 states and 211 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 11:17:38,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:38,835 INFO L93 Difference]: Finished difference Result 205 states and 224 transitions. [2022-10-16 11:17:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:17:38,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2022-10-16 11:17:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:38,837 INFO L225 Difference]: With dead ends: 205 [2022-10-16 11:17:38,837 INFO L226 Difference]: Without dead ends: 204 [2022-10-16 11:17:38,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:17:38,838 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 12 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:17:38,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 136 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:17:38,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-16 11:17:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 198. [2022-10-16 11:17:38,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 176 states have (on average 1.1761363636363635) internal successors, (207), 183 states have internal predecessors, (207), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 11:17:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 221 transitions. [2022-10-16 11:17:38,867 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 221 transitions. Word has length 40 [2022-10-16 11:17:38,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:38,867 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 221 transitions. [2022-10-16 11:17:38,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 11:17:38,867 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 221 transitions. [2022-10-16 11:17:38,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 11:17:38,868 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:38,868 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:17:38,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 11:17:39,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:39,078 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:17:39,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:39,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1181534651, now seen corresponding path program 1 times [2022-10-16 11:17:39,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:39,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108913650] [2022-10-16 11:17:39,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:39,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:39,091 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:39,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807233366] [2022-10-16 11:17:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:39,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:39,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:39,093 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:17:39,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:17:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:17:39,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:17:39,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:17:39,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:17:39,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:39,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108913650] [2022-10-16 11:17:39,188 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:39,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807233366] [2022-10-16 11:17:39,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807233366] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:17:39,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:17:39,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:17:39,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974983709] [2022-10-16 11:17:39,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:17:39,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:17:39,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:17:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:17:39,191 INFO L87 Difference]: Start difference. First operand 198 states and 221 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 11:17:39,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:39,233 INFO L93 Difference]: Finished difference Result 198 states and 221 transitions. [2022-10-16 11:17:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:17:39,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-10-16 11:17:39,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:39,236 INFO L225 Difference]: With dead ends: 198 [2022-10-16 11:17:39,236 INFO L226 Difference]: Without dead ends: 197 [2022-10-16 11:17:39,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:17:39,238 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 17 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:17:39,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 114 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:17:39,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-16 11:17:39,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-10-16 11:17:39,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 176 states have (on average 1.1704545454545454) internal successors, (206), 182 states have internal predecessors, (206), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 11:17:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 220 transitions. [2022-10-16 11:17:39,263 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 220 transitions. Word has length 41 [2022-10-16 11:17:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:39,263 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 220 transitions. [2022-10-16 11:17:39,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 11:17:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 220 transitions. [2022-10-16 11:17:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 11:17:39,265 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:39,265 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:17:39,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 11:17:39,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:17:39,468 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:17:39,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:39,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1481859807, now seen corresponding path program 2 times [2022-10-16 11:17:39,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:39,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204460407] [2022-10-16 11:17:39,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:39,482 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:39,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142755694] [2022-10-16 11:17:39,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:17:39,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:39,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:39,483 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:17:39,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:17:39,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:17:39,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:17:39,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 11:17:39,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:39,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:17:39,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:39,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-10-16 11:17:39,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 11:17:39,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:39,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2022-10-16 11:17:46,951 INFO L356 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-10-16 11:17:46,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 73 [2022-10-16 11:17:47,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 11:17:47,019 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:17:47,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-10-16 11:17:47,040 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 11:17:47,055 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-10-16 11:17:47,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 11:17:48,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-10-16 11:17:48,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:48,249 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-10-16 11:17:48,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-10-16 11:17:48,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:17:48,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:48,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:48,440 INFO L356 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2022-10-16 11:17:48,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 35 [2022-10-16 11:17:48,882 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:17:48,907 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:17:48,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:17:55,342 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_580 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_580) |c_ULTIMATE.start_main_~#array2~0#1.base|) |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1))) is different from false [2022-10-16 11:17:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:55,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204460407] [2022-10-16 11:17:55,362 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:55,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142755694] [2022-10-16 11:17:55,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142755694] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:17:55,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:17:55,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2022-10-16 11:17:55,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922004439] [2022-10-16 11:17:55,363 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:17:55,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 11:17:55,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:55,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 11:17:55,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=213, Unknown=7, NotChecked=30, Total=306 [2022-10-16 11:17:55,364 INFO L87 Difference]: Start difference. First operand 197 states and 220 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:18:01,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-16 11:18:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:18:01,591 INFO L93 Difference]: Finished difference Result 244 states and 269 transitions. [2022-10-16 11:18:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:18:01,592 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-10-16 11:18:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:18:01,594 INFO L225 Difference]: With dead ends: 244 [2022-10-16 11:18:01,594 INFO L226 Difference]: Without dead ends: 243 [2022-10-16 11:18:01,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=99, Invalid=358, Unknown=9, NotChecked=40, Total=506 [2022-10-16 11:18:01,595 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 97 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:18:01,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 503 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 157 Invalid, 1 Unknown, 94 Unchecked, 2.2s Time] [2022-10-16 11:18:01,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-10-16 11:18:01,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 198. [2022-10-16 11:18:01,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 177 states have (on average 1.1807909604519775) internal successors, (209), 183 states have internal predecessors, (209), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 11:18:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 223 transitions. [2022-10-16 11:18:01,620 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 223 transitions. Word has length 42 [2022-10-16 11:18:01,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:18:01,620 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 223 transitions. [2022-10-16 11:18:01,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:18:01,621 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 223 transitions. [2022-10-16 11:18:01,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 11:18:01,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:18:01,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:18:01,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 11:18:01,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 11:18:01,836 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:18:01,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:18:01,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1583436925, now seen corresponding path program 1 times [2022-10-16 11:18:01,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:18:01,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256223817] [2022-10-16 11:18:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:18:01,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:18:01,849 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:18:01,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599449792] [2022-10-16 11:18:01,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:18:01,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:18:01,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:18:01,851 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:18:01,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 11:18:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:18:01,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:18:01,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:18:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:18:02,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:18:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:18:02,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:18:02,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256223817] [2022-10-16 11:18:02,112 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:18:02,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599449792] [2022-10-16 11:18:02,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599449792] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:18:02,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:18:02,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 11:18:02,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967596072] [2022-10-16 11:18:02,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:18:02,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:18:02,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:18:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:18:02,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:18:02,115 INFO L87 Difference]: Start difference. First operand 198 states and 223 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:18:02,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:18:02,287 INFO L93 Difference]: Finished difference Result 240 states and 259 transitions. [2022-10-16 11:18:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 11:18:02,289 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2022-10-16 11:18:02,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:18:02,291 INFO L225 Difference]: With dead ends: 240 [2022-10-16 11:18:02,291 INFO L226 Difference]: Without dead ends: 221 [2022-10-16 11:18:02,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 70 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:18:02,293 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 129 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:18:02,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 320 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:18:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-16 11:18:02,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 208. [2022-10-16 11:18:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 187 states have (on average 1.1711229946524064) internal successors, (219), 193 states have internal predecessors, (219), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 11:18:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 233 transitions. [2022-10-16 11:18:02,317 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 233 transitions. Word has length 43 [2022-10-16 11:18:02,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:18:02,318 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 233 transitions. [2022-10-16 11:18:02,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:18:02,318 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 233 transitions. [2022-10-16 11:18:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 11:18:02,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:18:02,319 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:18:02,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 11:18:02,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 11:18:02,533 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:18:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:18:02,533 INFO L85 PathProgramCache]: Analyzing trace with hash -378039473, now seen corresponding path program 2 times [2022-10-16 11:18:02,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:18:02,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320409487] [2022-10-16 11:18:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:18:02,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:18:02,547 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:18:02,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480130342] [2022-10-16 11:18:02,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:18:02,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:18:02,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:18:02,549 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:18:02,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 11:18:05,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:18:05,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:18:05,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 11:18:05,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:18:05,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:18:05,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:18:05,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-10-16 11:18:05,491 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 11:18:05,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:18:05,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2022-10-16 11:18:06,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2022-10-16 11:18:06,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:18:06,200 INFO L356 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-10-16 11:18:06,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 99 [2022-10-16 11:18:08,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 73 [2022-10-16 11:18:39,035 WARN L233 SmtUtils]: Spent 25.59s on a formula simplification. DAG size of input: 80 DAG size of output: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)