/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-fpi/s52if.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:54:38,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:54:38,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:54:38,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:54:38,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:54:38,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:54:38,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:54:38,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:54:38,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:54:38,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:54:38,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:54:38,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:54:38,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:54:38,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:54:38,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:54:38,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:54:38,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:54:38,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:54:38,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:54:38,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:54:38,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:54:38,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:54:38,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:54:38,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:54:38,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:54:38,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:54:38,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:54:38,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:54:38,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:54:38,663 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:54:38,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:54:38,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:54:38,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:54:38,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:54:38,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:54:38,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:54:38,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:54:38,667 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:54:38,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:54:38,668 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:54:38,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:54:38,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:54:38,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:54:38,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:54:38,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:54:38,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:54:38,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:54:38,670 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:54:38,670 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:54:38,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:54:38,670 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:54:38,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:54:38,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:54:38,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:54:38,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:54:38,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:54:38,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:54:38,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:54:38,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:54:38,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:54:38,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:54:38,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:54:38,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:54:39,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:54:39,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:54:39,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:54:39,113 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:54:39,114 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:54:39,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/s52if.c [2022-10-16 10:54:39,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/968d4bfcf/dc930078f5814f7a94e6fcaf0435d1d7/FLAGdbf6255ea [2022-10-16 10:54:39,830 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:54:39,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s52if.c [2022-10-16 10:54:39,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/968d4bfcf/dc930078f5814f7a94e6fcaf0435d1d7/FLAGdbf6255ea [2022-10-16 10:54:40,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/968d4bfcf/dc930078f5814f7a94e6fcaf0435d1d7 [2022-10-16 10:54:40,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:54:40,190 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:54:40,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:54:40,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:54:40,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:54:40,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8ed487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40, skipping insertion in model container [2022-10-16 10:54:40,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:54:40,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:54:40,402 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-fpi/s52if.c[588,601] [2022-10-16 10:54:40,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:54:40,440 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:54:40,455 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-fpi/s52if.c[588,601] [2022-10-16 10:54:40,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:54:40,486 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:54:40,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40 WrapperNode [2022-10-16 10:54:40,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:54:40,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:54:40,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:54:40,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:54:40,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,540 INFO L138 Inliner]: procedures = 17, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2022-10-16 10:54:40,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:54:40,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:54:40,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:54:40,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:54:40,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,575 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:54:40,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:54:40,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:54:40,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:54:40,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (1/1) ... [2022-10-16 10:54:40,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:54:40,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:40,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:54:40,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:54:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:54:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:54:40,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:54:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:54:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:54:40,877 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:54:40,880 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:54:41,210 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:54:41,221 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:54:41,221 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:54:41,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:54:41 BoogieIcfgContainer [2022-10-16 10:54:41,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:54:41,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:54:41,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:54:41,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:54:41,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:54:40" (1/3) ... [2022-10-16 10:54:41,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1315779f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:54:41, skipping insertion in model container [2022-10-16 10:54:41,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:54:40" (2/3) ... [2022-10-16 10:54:41,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1315779f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:54:41, skipping insertion in model container [2022-10-16 10:54:41,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:54:41" (3/3) ... [2022-10-16 10:54:41,238 INFO L112 eAbstractionObserver]: Analyzing ICFG s52if.c [2022-10-16 10:54:41,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:54:41,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 10:54:41,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:54:41,410 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;@61a81c08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:54:41,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 10:54:41,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 53 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:41,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:54:41,428 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:41,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:41,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:41,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:41,437 INFO L85 PathProgramCache]: Analyzing trace with hash 177631151, now seen corresponding path program 1 times [2022-10-16 10:54:41,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:41,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995957173] [2022-10-16 10:54:41,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:41,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:41,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:41,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995957173] [2022-10-16 10:54:41,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995957173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:41,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:54:41,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:54:41,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025214369] [2022-10-16 10:54:41,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:41,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:54:41,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:41,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:54:41,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:54:41,812 INFO L87 Difference]: Start difference. First operand has 54 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 53 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:41,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:41,850 INFO L93 Difference]: Finished difference Result 104 states and 122 transitions. [2022-10-16 10:54:41,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:54:41,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:54:41,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:41,866 INFO L225 Difference]: With dead ends: 104 [2022-10-16 10:54:41,867 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 10:54:41,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:54:41,880 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:41,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:54:41,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 10:54:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-10-16 10:54:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.625) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:41,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-10-16 10:54:41,962 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 8 [2022-10-16 10:54:41,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:41,963 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-10-16 10:54:41,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-10-16 10:54:41,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:54:41,964 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:41,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:41,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:54:41,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:41,971 INFO L85 PathProgramCache]: Analyzing trace with hash 179478193, now seen corresponding path program 1 times [2022-10-16 10:54:41,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:41,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086860853] [2022-10-16 10:54:41,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:41,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:42,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:42,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086860853] [2022-10-16 10:54:42,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086860853] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:42,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:54:42,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:54:42,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541298653] [2022-10-16 10:54:42,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:42,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:54:42,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:42,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:54:42,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:54:42,177 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:42,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:42,315 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2022-10-16 10:54:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:54:42,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:54:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:42,320 INFO L225 Difference]: With dead ends: 91 [2022-10-16 10:54:42,324 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 10:54:42,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:54:42,330 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 40 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:42,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 97 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:42,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 10:54:42,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 52. [2022-10-16 10:54:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 51 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:42,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-10-16 10:54:42,351 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 8 [2022-10-16 10:54:42,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:42,355 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-10-16 10:54:42,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-10-16 10:54:42,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:54:42,360 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:42,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:42,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:54:42,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:42,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:42,362 INFO L85 PathProgramCache]: Analyzing trace with hash 678258903, now seen corresponding path program 1 times [2022-10-16 10:54:42,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:42,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674572665] [2022-10-16 10:54:42,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:42,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:42,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:42,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674572665] [2022-10-16 10:54:42,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674572665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:42,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:54:42,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:54:42,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599261210] [2022-10-16 10:54:42,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:42,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:54:42,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:42,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:54:42,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:54:42,486 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:42,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:42,636 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2022-10-16 10:54:42,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:54:42,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:54:42,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:42,638 INFO L225 Difference]: With dead ends: 118 [2022-10-16 10:54:42,638 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 10:54:42,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 10:54:42,641 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 81 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:42,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 58 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:42,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 10:54:42,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 52. [2022-10-16 10:54:42,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:42,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2022-10-16 10:54:42,653 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 10 [2022-10-16 10:54:42,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:42,653 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2022-10-16 10:54:42,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:42,654 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2022-10-16 10:54:42,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:54:42,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:42,655 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:42,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:54:42,655 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:42,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:42,656 INFO L85 PathProgramCache]: Analyzing trace with hash 504169901, now seen corresponding path program 1 times [2022-10-16 10:54:42,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:42,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363871706] [2022-10-16 10:54:42,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:42,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:42,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:42,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363871706] [2022-10-16 10:54:42,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363871706] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:42,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733233927] [2022-10-16 10:54:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:42,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:42,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:42,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:42,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:54:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:42,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:54:42,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:42,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:43,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733233927] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:43,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:43,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:54:43,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733260447] [2022-10-16 10:54:43,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:43,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:54:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:43,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:54:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:54:43,076 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:43,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:43,344 INFO L93 Difference]: Finished difference Result 99 states and 110 transitions. [2022-10-16 10:54:43,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:54:43,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 10:54:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:43,348 INFO L225 Difference]: With dead ends: 99 [2022-10-16 10:54:43,348 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 10:54:43,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 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 10:54:43,351 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:43,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 157 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:54:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 10:54:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 63. [2022-10-16 10:54:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 48 states have (on average 1.5) internal successors, (72), 62 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:43,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2022-10-16 10:54:43,364 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 12 [2022-10-16 10:54:43,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:43,365 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2022-10-16 10:54:43,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:43,365 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2022-10-16 10:54:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:54:43,366 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:43,366 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:43,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:43,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:43,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:43,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:43,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1550602195, now seen corresponding path program 1 times [2022-10-16 10:54:43,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:43,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735262406] [2022-10-16 10:54:43,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:43,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:43,731 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 10:54:43,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:43,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735262406] [2022-10-16 10:54:43,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735262406] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:43,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566014764] [2022-10-16 10:54:43,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:43,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:43,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:43,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:43,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:54:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:43,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:54:43,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:43,876 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 10:54:43,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:54:43,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566014764] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:43,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:54:43,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:54:43,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686326058] [2022-10-16 10:54:43,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:43,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:54:43,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:43,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:54:43,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:54:43,880 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:44,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:44,008 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2022-10-16 10:54:44,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:54:44,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 10:54:44,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:44,015 INFO L225 Difference]: With dead ends: 91 [2022-10-16 10:54:44,015 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 10:54:44,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 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 10:54:44,018 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 40 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:44,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 110 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 10:54:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 62. [2022-10-16 10:54:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 48 states have (on average 1.4375) internal successors, (69), 61 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:44,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-10-16 10:54:44,030 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 13 [2022-10-16 10:54:44,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:44,031 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-10-16 10:54:44,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:44,031 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-10-16 10:54:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:54:44,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:44,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:44,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:44,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:44,246 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:44,248 INFO L85 PathProgramCache]: Analyzing trace with hash -825622317, now seen corresponding path program 1 times [2022-10-16 10:54:44,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:44,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474021493] [2022-10-16 10:54:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:44,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:44,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:44,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474021493] [2022-10-16 10:54:44,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474021493] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:44,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316807438] [2022-10-16 10:54:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:44,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:44,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:44,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:44,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:54:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:44,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 10:54:44,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:44,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-10-16 10:54:44,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:44,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:45,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-10-16 10:54:45,029 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 18 treesize of output 16 [2022-10-16 10:54:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:45,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316807438] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:45,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:45,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 10:54:45,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786214292] [2022-10-16 10:54:45,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:45,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:54:45,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:45,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:54:45,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:54:45,045 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:45,163 INFO L93 Difference]: Finished difference Result 121 states and 133 transitions. [2022-10-16 10:54:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 10:54:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:54:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:45,165 INFO L225 Difference]: With dead ends: 121 [2022-10-16 10:54:45,165 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 10:54:45,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:54:45,168 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:45,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 205 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 10:54:45,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 63. [2022-10-16 10:54:45,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 62 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-10-16 10:54:45,178 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 14 [2022-10-16 10:54:45,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:45,179 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-10-16 10:54:45,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,180 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-10-16 10:54:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:54:45,180 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:45,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:45,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:45,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:45,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:45,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:45,393 INFO L85 PathProgramCache]: Analyzing trace with hash -825622509, now seen corresponding path program 1 times [2022-10-16 10:54:45,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:45,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239683324] [2022-10-16 10:54:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:54:45,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:45,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239683324] [2022-10-16 10:54:45,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239683324] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:45,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:54:45,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:54:45,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366216865] [2022-10-16 10:54:45,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:45,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:54:45,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:45,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:54:45,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:54:45,512 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:45,555 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2022-10-16 10:54:45,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:54:45,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:54:45,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:45,558 INFO L225 Difference]: With dead ends: 63 [2022-10-16 10:54:45,558 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 10:54:45,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:54:45,564 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:45,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 105 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:54:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 10:54:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 10:54:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 60 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2022-10-16 10:54:45,597 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 14 [2022-10-16 10:54:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:45,598 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2022-10-16 10:54:45,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2022-10-16 10:54:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:54:45,599 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:45,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:45,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 10:54:45,602 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:45,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:45,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1157615292, now seen corresponding path program 1 times [2022-10-16 10:54:45,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:45,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861897312] [2022-10-16 10:54:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:45,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:54:45,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:45,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861897312] [2022-10-16 10:54:45,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861897312] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:45,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:54:45,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:54:45,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958381598] [2022-10-16 10:54:45,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:45,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:54:45,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:45,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:54:45,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:54:45,706 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:45,783 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2022-10-16 10:54:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:54:45,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 10:54:45,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:45,784 INFO L225 Difference]: With dead ends: 82 [2022-10-16 10:54:45,784 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 10:54:45,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:54:45,786 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 21 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:45,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 92 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 10:54:45,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 66. [2022-10-16 10:54:45,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 65 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2022-10-16 10:54:45,803 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 17 [2022-10-16 10:54:45,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:45,803 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2022-10-16 10:54:45,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:45,804 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2022-10-16 10:54:45,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:54:45,805 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:45,806 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:45,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:54:45,807 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:45,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:45,808 INFO L85 PathProgramCache]: Analyzing trace with hash 250320491, now seen corresponding path program 1 times [2022-10-16 10:54:45,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:45,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359258663] [2022-10-16 10:54:45,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:45,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:46,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:46,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359258663] [2022-10-16 10:54:46,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359258663] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:46,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219697293] [2022-10-16 10:54:46,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:46,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:46,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:46,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:46,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:54:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:46,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:54:46,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:46,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:46,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219697293] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:46,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:46,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:54:46,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534535243] [2022-10-16 10:54:46,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:46,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:54:46,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:46,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:54:46,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:54:46,316 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:46,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:46,553 INFO L93 Difference]: Finished difference Result 155 states and 170 transitions. [2022-10-16 10:54:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:54:46,553 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 10:54:46,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:46,554 INFO L225 Difference]: With dead ends: 155 [2022-10-16 10:54:46,555 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 10:54:46,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:54:46,556 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 113 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:46,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 307 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:54:46,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 10:54:46,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 85. [2022-10-16 10:54:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 73 states have (on average 1.356164383561644) internal successors, (99), 84 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 99 transitions. [2022-10-16 10:54:46,565 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 99 transitions. Word has length 21 [2022-10-16 10:54:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:46,565 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 99 transitions. [2022-10-16 10:54:46,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:46,566 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2022-10-16 10:54:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:54:46,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:46,567 INFO L195 NwaCegarLoop]: trace histogram [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 10:54:46,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:46,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:46,781 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:46,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:46,782 INFO L85 PathProgramCache]: Analyzing trace with hash 38416049, now seen corresponding path program 1 times [2022-10-16 10:54:46,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:46,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400569172] [2022-10-16 10:54:46,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:46,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:46,801 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:54:46,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152305300] [2022-10-16 10:54:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:46,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:46,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:46,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:46,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:54:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:46,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 10:54:46,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:46,950 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 25 treesize of output 13 [2022-10-16 10:54:47,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 10:54:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:54:47,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:47,103 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 37 treesize of output 31 [2022-10-16 10:54:47,109 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-10-16 10:54:47,110 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 38 treesize of output 24 [2022-10-16 10:54:47,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:54:47,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:47,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400569172] [2022-10-16 10:54:47,125 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:54:47,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152305300] [2022-10-16 10:54:47,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152305300] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:47,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:54:47,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-10-16 10:54:47,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984108469] [2022-10-16 10:54:47,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:47,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:54:47,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:47,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:54:47,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:54:47,127 INFO L87 Difference]: Start difference. First operand 85 states and 99 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:47,420 INFO L93 Difference]: Finished difference Result 153 states and 184 transitions. [2022-10-16 10:54:47,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:54:47,421 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 10:54:47,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:47,422 INFO L225 Difference]: With dead ends: 153 [2022-10-16 10:54:47,422 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 10:54:47,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:54:47,424 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 94 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:47,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 319 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:54:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 10:54:47,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 97. [2022-10-16 10:54:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 96 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:47,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 115 transitions. [2022-10-16 10:54:47,448 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 115 transitions. Word has length 23 [2022-10-16 10:54:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:47,449 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 115 transitions. [2022-10-16 10:54:47,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:47,449 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 115 transitions. [2022-10-16 10:54:47,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:54:47,450 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:47,450 INFO L195 NwaCegarLoop]: trace histogram [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 10:54:47,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:47,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 10:54:47,665 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:47,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:47,666 INFO L85 PathProgramCache]: Analyzing trace with hash 38415857, now seen corresponding path program 1 times [2022-10-16 10:54:47,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:47,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546092359] [2022-10-16 10:54:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:47,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:47,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:54:47,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:47,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546092359] [2022-10-16 10:54:47,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546092359] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:47,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:54:47,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:54:47,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32194497] [2022-10-16 10:54:47,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:47,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:54:47,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:47,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:54:47,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:54:47,885 INFO L87 Difference]: Start difference. First operand 97 states and 115 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:47,967 INFO L93 Difference]: Finished difference Result 108 states and 129 transitions. [2022-10-16 10:54:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:54:47,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 10:54:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:47,969 INFO L225 Difference]: With dead ends: 108 [2022-10-16 10:54:47,969 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 10:54:47,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:54:47,971 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 13 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:47,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 115 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:47,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 10:54:47,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2022-10-16 10:54:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 101 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2022-10-16 10:54:47,981 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 23 [2022-10-16 10:54:47,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:47,981 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2022-10-16 10:54:47,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:47,982 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2022-10-16 10:54:47,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:54:47,983 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:47,983 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:47,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:54:47,984 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:47,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:47,984 INFO L85 PathProgramCache]: Analyzing trace with hash -897513823, now seen corresponding path program 2 times [2022-10-16 10:54:47,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:47,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040842202] [2022-10-16 10:54:47,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:47,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:48,142 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 10:54:48,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:48,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040842202] [2022-10-16 10:54:48,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040842202] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:48,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724346492] [2022-10-16 10:54:48,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:54:48,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:48,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:48,145 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:48,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:54:48,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:54:48,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:48,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:54:48,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:48,264 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 10:54:48,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:48,309 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 10:54:48,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724346492] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:48,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:48,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:54:48,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073277646] [2022-10-16 10:54:48,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:48,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:54:48,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:48,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:54:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:54:48,312 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:48,571 INFO L93 Difference]: Finished difference Result 124 states and 148 transitions. [2022-10-16 10:54:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:54:48,572 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:54:48,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:48,573 INFO L225 Difference]: With dead ends: 124 [2022-10-16 10:54:48,573 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 10:54:48,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:54:48,575 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 206 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:48,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 170 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 10:54:48,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 91. [2022-10-16 10:54:48,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.35) internal successors, (108), 90 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:48,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 108 transitions. [2022-10-16 10:54:48,584 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 108 transitions. Word has length 24 [2022-10-16 10:54:48,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:48,584 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 108 transitions. [2022-10-16 10:54:48,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:48,584 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 108 transitions. [2022-10-16 10:54:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:54:48,585 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:48,586 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:48,612 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 10:54:48,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:48,794 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:48,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:48,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1920559343, now seen corresponding path program 2 times [2022-10-16 10:54:48,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:48,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956666226] [2022-10-16 10:54:48,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:48,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:49,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:49,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956666226] [2022-10-16 10:54:49,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956666226] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:49,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475925905] [2022-10-16 10:54:49,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:54:49,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:49,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:49,298 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:49,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:54:49,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:54:49,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:49,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 10:54:49,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:49,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:54:49,477 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:54:49,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:54:49,536 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:49,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:49,611 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 16 treesize of output 14 [2022-10-16 10:54:49,614 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 20 treesize of output 16 [2022-10-16 10:54:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:49,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475925905] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:49,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:49,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 14 [2022-10-16 10:54:49,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332528862] [2022-10-16 10:54:49,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:49,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:54:49,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:49,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:54:49,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:54:49,635 INFO L87 Difference]: Start difference. First operand 91 states and 108 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:49,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:49,925 INFO L93 Difference]: Finished difference Result 156 states and 181 transitions. [2022-10-16 10:54:49,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:54:49,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:54:49,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:49,927 INFO L225 Difference]: With dead ends: 156 [2022-10-16 10:54:49,927 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 10:54:49,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:54:49,928 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 64 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:49,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 317 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:54:49,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 10:54:49,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 93. [2022-10-16 10:54:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.353658536585366) internal successors, (111), 92 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:49,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2022-10-16 10:54:49,937 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 25 [2022-10-16 10:54:49,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:49,938 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2022-10-16 10:54:49,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2022-10-16 10:54:49,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 10:54:49,939 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:49,939 INFO L195 NwaCegarLoop]: trace histogram [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 10:54:49,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:50,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:50,156 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:50,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:50,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1985602653, now seen corresponding path program 1 times [2022-10-16 10:54:50,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:50,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577263523] [2022-10-16 10:54:50,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:50,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:54:50,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:50,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577263523] [2022-10-16 10:54:50,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577263523] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:50,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:54:50,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:54:50,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143140851] [2022-10-16 10:54:50,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:50,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:54:50,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:50,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:54:50,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:54:50,215 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:50,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:50,269 INFO L93 Difference]: Finished difference Result 105 states and 125 transitions. [2022-10-16 10:54:50,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:54:50,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 10:54:50,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:50,270 INFO L225 Difference]: With dead ends: 105 [2022-10-16 10:54:50,270 INFO L226 Difference]: Without dead ends: 103 [2022-10-16 10:54:50,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:54:50,271 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 17 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:50,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 99 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:54:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-16 10:54:50,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2022-10-16 10:54:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 100 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:50,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 121 transitions. [2022-10-16 10:54:50,281 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 121 transitions. Word has length 26 [2022-10-16 10:54:50,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:50,281 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 121 transitions. [2022-10-16 10:54:50,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:50,281 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 121 transitions. [2022-10-16 10:54:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:54:50,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:50,282 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:50,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 10:54:50,283 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:50,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:50,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2118394144, now seen corresponding path program 1 times [2022-10-16 10:54:50,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:50,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748455353] [2022-10-16 10:54:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:50,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:54:50,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:50,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748455353] [2022-10-16 10:54:50,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748455353] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:50,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804088276] [2022-10-16 10:54:50,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:50,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:50,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:50,380 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:50,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:54:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:50,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:54:50,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:54:50,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:50,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:54:50,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804088276] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:50,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:50,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:54:50,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943108402] [2022-10-16 10:54:50,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:50,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:54:50,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:50,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:54:50,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:54:50,535 INFO L87 Difference]: Start difference. First operand 101 states and 121 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:50,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:50,717 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2022-10-16 10:54:50,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:54:50,718 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 10:54:50,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:50,719 INFO L225 Difference]: With dead ends: 148 [2022-10-16 10:54:50,719 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 10:54:50,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 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 10:54:50,721 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 68 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:50,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 152 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:50,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 10:54:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 132. [2022-10-16 10:54:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 121 states have (on average 1.3636363636363635) internal successors, (165), 131 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:50,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2022-10-16 10:54:50,734 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 28 [2022-10-16 10:54:50,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:50,734 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2022-10-16 10:54:50,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:50,735 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2022-10-16 10:54:50,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:54:50,736 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:50,736 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:50,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:50,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:54:50,952 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:50,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:50,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1245709113, now seen corresponding path program 1 times [2022-10-16 10:54:50,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:50,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41693573] [2022-10-16 10:54:50,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:50,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:54:51,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:51,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41693573] [2022-10-16 10:54:51,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41693573] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:51,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781526115] [2022-10-16 10:54:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:51,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:51,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:51,062 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:51,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:54:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:51,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:54:51,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:51,176 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:54:51,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:54:51,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781526115] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:54:51,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:54:51,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:54:51,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18314799] [2022-10-16 10:54:51,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:54:51,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:54:51,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:54:51,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:54:51,181 INFO L87 Difference]: Start difference. First operand 132 states and 165 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:51,262 INFO L93 Difference]: Finished difference Result 134 states and 165 transitions. [2022-10-16 10:54:51,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:54:51,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 10:54:51,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:51,263 INFO L225 Difference]: With dead ends: 134 [2022-10-16 10:54:51,264 INFO L226 Difference]: Without dead ends: 133 [2022-10-16 10:54:51,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 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 10:54:51,265 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:51,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 142 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-16 10:54:51,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2022-10-16 10:54:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 121 states have (on average 1.322314049586777) internal successors, (160), 130 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 160 transitions. [2022-10-16 10:54:51,280 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 160 transitions. Word has length 29 [2022-10-16 10:54:51,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:51,282 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 160 transitions. [2022-10-16 10:54:51,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 160 transitions. [2022-10-16 10:54:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:54:51,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:51,283 INFO L195 NwaCegarLoop]: trace histogram [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 10:54:51,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:51,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 10:54:51,497 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:51,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:51,497 INFO L85 PathProgramCache]: Analyzing trace with hash 874414924, now seen corresponding path program 1 times [2022-10-16 10:54:51,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:51,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581055962] [2022-10-16 10:54:51,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:51,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:51,513 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:54:51,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68898008] [2022-10-16 10:54:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:51,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:51,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:51,515 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:51,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:54:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:51,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:54:51,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:54:51,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:51,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:54:51,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:51,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581055962] [2022-10-16 10:54:51,768 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:54:51,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68898008] [2022-10-16 10:54:51,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68898008] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:51,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:54:51,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:54:51,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125963272] [2022-10-16 10:54:51,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:51,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:54:51,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:51,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:54:51,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:54:51,774 INFO L87 Difference]: Start difference. First operand 131 states and 160 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:51,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:51,966 INFO L93 Difference]: Finished difference Result 143 states and 164 transitions. [2022-10-16 10:54:51,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:54:51,967 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 10:54:51,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:51,968 INFO L225 Difference]: With dead ends: 143 [2022-10-16 10:54:51,968 INFO L226 Difference]: Without dead ends: 110 [2022-10-16 10:54:51,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-10-16 10:54:51,973 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 63 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:51,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 239 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:51,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-16 10:54:51,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2022-10-16 10:54:51,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 104 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2022-10-16 10:54:51,981 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 30 [2022-10-16 10:54:51,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:51,981 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2022-10-16 10:54:51,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2022-10-16 10:54:51,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 10:54:51,982 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:51,982 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:52,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:52,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 10:54:52,197 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:52,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:52,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1892149553, now seen corresponding path program 3 times [2022-10-16 10:54:52,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:52,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412451371] [2022-10-16 10:54:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:52,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:52,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:52,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412451371] [2022-10-16 10:54:52,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412451371] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:52,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955251120] [2022-10-16 10:54:52,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:54:52,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:52,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:52,434 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:52,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:54:52,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:54:52,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:52,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:54:52,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:52,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:52,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955251120] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:52,797 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:52,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:54:52,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72871574] [2022-10-16 10:54:52,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:52,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:54:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:52,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:54:52,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:54:52,799 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:53,104 INFO L93 Difference]: Finished difference Result 238 states and 280 transitions. [2022-10-16 10:54:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:54:53,105 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 10:54:53,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:53,106 INFO L225 Difference]: With dead ends: 238 [2022-10-16 10:54:53,106 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 10:54:53,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 46 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:54:53,108 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 204 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:53,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 259 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:54:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 10:54:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 142. [2022-10-16 10:54:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 132 states have (on average 1.303030303030303) internal successors, (172), 141 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-10-16 10:54:53,119 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 32 [2022-10-16 10:54:53,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:53,120 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-10-16 10:54:53,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-10-16 10:54:53,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 10:54:53,121 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:53,121 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 10:54:53,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:53,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 10:54:53,334 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:53,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:53,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1277475512, now seen corresponding path program 2 times [2022-10-16 10:54:53,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:53,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960497820] [2022-10-16 10:54:53,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:53,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:53,350 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:54:53,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [317965714] [2022-10-16 10:54:53,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:54:53,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:53,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:53,352 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:53,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:54:53,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:54:53,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:53,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:54:53,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:53,507 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:54:53,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:54:53,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:53,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960497820] [2022-10-16 10:54:53,571 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:54:53,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317965714] [2022-10-16 10:54:53,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317965714] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:53,571 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:54:53,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:54:53,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214890873] [2022-10-16 10:54:53,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:53,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:54:53,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:53,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:54:53,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:54:53,573 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:53,780 INFO L93 Difference]: Finished difference Result 187 states and 223 transitions. [2022-10-16 10:54:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:54:53,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 10:54:53,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:53,782 INFO L225 Difference]: With dead ends: 187 [2022-10-16 10:54:53,782 INFO L226 Difference]: Without dead ends: 144 [2022-10-16 10:54:53,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-10-16 10:54:53,783 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 131 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:53,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 163 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:54:53,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-10-16 10:54:53,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2022-10-16 10:54:53,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 132 states have (on average 1.2878787878787878) internal successors, (170), 141 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:53,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 170 transitions. [2022-10-16 10:54:53,794 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 170 transitions. Word has length 34 [2022-10-16 10:54:53,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:53,794 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 170 transitions. [2022-10-16 10:54:53,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 170 transitions. [2022-10-16 10:54:53,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 10:54:53,795 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:53,795 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:53,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:54,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:54,011 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash 315378123, now seen corresponding path program 4 times [2022-10-16 10:54:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:54,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334913463] [2022-10-16 10:54:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:54,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:54,718 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:54,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:54,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334913463] [2022-10-16 10:54:54,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334913463] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:54,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654381575] [2022-10-16 10:54:54,719 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:54:54,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:54,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:54,723 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:54,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:54:54,795 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:54:54,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:54,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 10:54:54,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:54,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:54:54,924 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:54:54,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:54:54,995 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:54:54,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:54:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:55,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:55,246 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 16 treesize of output 14 [2022-10-16 10:54:55,249 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 20 treesize of output 16 [2022-10-16 10:54:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:55,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654381575] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:55,274 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:55,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 32 [2022-10-16 10:54:55,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968087943] [2022-10-16 10:54:55,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:55,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 10:54:55,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:55,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 10:54:55,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=878, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:54:55,276 INFO L87 Difference]: Start difference. First operand 142 states and 170 transitions. Second operand has 32 states, 32 states have (on average 2.625) internal successors, (84), 32 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:56,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:56,096 INFO L93 Difference]: Finished difference Result 199 states and 233 transitions. [2022-10-16 10:54:56,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 10:54:56,097 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.625) internal successors, (84), 32 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-10-16 10:54:56,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:56,097 INFO L225 Difference]: With dead ends: 199 [2022-10-16 10:54:56,097 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 10:54:56,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 10:54:56,099 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 76 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:56,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 740 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:54:56,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 10:54:56,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 133. [2022-10-16 10:54:56,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 132 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2022-10-16 10:54:56,109 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 36 [2022-10-16 10:54:56,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:56,109 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2022-10-16 10:54:56,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.625) internal successors, (84), 32 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:56,109 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2022-10-16 10:54:56,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:54:56,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:56,110 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:56,152 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 10:54:56,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-10-16 10:54:56,324 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:56,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:56,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1855075176, now seen corresponding path program 3 times [2022-10-16 10:54:56,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:56,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870648305] [2022-10-16 10:54:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:56,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:56,346 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:54:56,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652042604] [2022-10-16 10:54:56,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:54:56,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:56,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:56,348 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 10:54:56,364 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 10:54:56,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:54:56,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:56,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 10:54:56,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:56,447 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 10:54:56,576 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 37 treesize of output 17 [2022-10-16 10:54:56,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 10:54:56,993 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:54:56,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:57,268 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_76| 1) (not (< |v_ULTIMATE.start_main_~i~0#1_76| c_~N~0)))) is different from false [2022-10-16 10:54:57,298 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (< |c_ULTIMATE.start_main_~i~0#1| (+ |v_ULTIMATE.start_main_~i~0#1_76| 1)) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_76| 1))) is different from false [2022-10-16 10:54:57,327 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_76| 1) (< |c_ULTIMATE.start_main_#t~post7#1| |v_ULTIMATE.start_main_~i~0#1_76|))) is different from false [2022-10-16 10:54:57,368 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_76| 1) (< |c_ULTIMATE.start_main_~i~0#1| |v_ULTIMATE.start_main_~i~0#1_76|))) is different from false [2022-10-16 10:54:57,393 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~i~0#1_76| 1) (< |c_ULTIMATE.start_main_~i~0#1| |v_ULTIMATE.start_main_~i~0#1_76|) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ 5 |c_ULTIMATE.start_main_#t~mem9#1|))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 6))) is different from false [2022-10-16 10:54:57,495 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:54:57,496 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 33 [2022-10-16 10:54:57,509 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:54:57,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 42 treesize of output 38 [2022-10-16 10:54:57,517 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 13 treesize of output 7 [2022-10-16 10:54:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 7 not checked. [2022-10-16 10:54:57,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:57,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870648305] [2022-10-16 10:54:57,675 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:54:57,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652042604] [2022-10-16 10:54:57,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652042604] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:57,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:54:57,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2022-10-16 10:54:57,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763088279] [2022-10-16 10:54:57,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:57,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-16 10:54:57,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:57,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-16 10:54:57,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=565, Unknown=5, NotChecked=260, Total=930 [2022-10-16 10:54:57,678 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand has 31 states, 31 states have (on average 2.032258064516129) internal successors, (63), 31 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:58,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:58,348 INFO L93 Difference]: Finished difference Result 188 states and 231 transitions. [2022-10-16 10:54:58,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:54:58,349 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.032258064516129) internal successors, (63), 31 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 10:54:58,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:58,350 INFO L225 Difference]: With dead ends: 188 [2022-10-16 10:54:58,350 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 10:54:58,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 52 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=186, Invalid=1008, Unknown=16, NotChecked=350, Total=1560 [2022-10-16 10:54:58,352 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 36 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 351 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:58,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 305 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 111 Invalid, 0 Unknown, 351 Unchecked, 0.1s Time] [2022-10-16 10:54:58,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 10:54:58,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2022-10-16 10:54:58,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 158 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 192 transitions. [2022-10-16 10:54:58,368 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 192 transitions. Word has length 41 [2022-10-16 10:54:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:58,368 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 192 transitions. [2022-10-16 10:54:58,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.032258064516129) internal successors, (63), 31 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 192 transitions. [2022-10-16 10:54:58,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:54:58,370 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:58,370 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:58,417 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 10:54:58,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:58,587 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:58,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:58,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1855074984, now seen corresponding path program 1 times [2022-10-16 10:54:58,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:58,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888162040] [2022-10-16 10:54:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:58,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:54:58,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:58,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888162040] [2022-10-16 10:54:58,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888162040] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:58,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282539282] [2022-10-16 10:54:58,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:58,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:58,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:58,995 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 10:54:59,016 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 10:54:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:59,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:54:59,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:59,092 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 10:54:59,099 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:54:59,121 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 10:54:59,137 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 10:54:59,168 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 10:54:59,195 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 10:54:59,308 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 47 treesize of output 30 [2022-10-16 10:54:59,426 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:54:59,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 56 treesize of output 28 [2022-10-16 10:54:59,446 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:54:59,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:00,213 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_510 Int) (|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_509 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_86| Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_509))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select v_ArrVal_509 (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4)))) (.cse2 (select (select (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_510)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_86| 4))))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse1) v_ArrVal_510) (< (+ v_ArrVal_510 .cse2) 9223372036854775808) (< 6 .cse1) (< 6 .cse2)))))) is different from false [2022-10-16 10:55:00,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 5 not checked. [2022-10-16 10:55:00,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282539282] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:00,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:00,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 21 [2022-10-16 10:55:00,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735624971] [2022-10-16 10:55:00,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:00,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:55:00,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:00,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:55:00,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=325, Unknown=1, NotChecked=38, Total=462 [2022-10-16 10:55:00,744 INFO L87 Difference]: Start difference. First operand 159 states and 192 transitions. Second operand has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 22 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:00,921 INFO L93 Difference]: Finished difference Result 185 states and 224 transitions. [2022-10-16 10:55:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:55:00,922 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 22 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 10:55:00,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:00,923 INFO L225 Difference]: With dead ends: 185 [2022-10-16 10:55:00,924 INFO L226 Difference]: Without dead ends: 184 [2022-10-16 10:55:00,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=136, Invalid=419, Unknown=1, NotChecked=44, Total=600 [2022-10-16 10:55:00,925 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 50 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:00,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 222 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 89 Unchecked, 0.1s Time] [2022-10-16 10:55:00,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-10-16 10:55:00,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 175. [2022-10-16 10:55:00,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 165 states have (on average 1.290909090909091) internal successors, (213), 174 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:00,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 213 transitions. [2022-10-16 10:55:00,940 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 213 transitions. Word has length 41 [2022-10-16 10:55:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:00,941 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 213 transitions. [2022-10-16 10:55:00,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 22 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 213 transitions. [2022-10-16 10:55:00,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 10:55:00,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:00,942 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:00,985 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 10:55:01,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:01,156 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:01,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:01,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1672749764, now seen corresponding path program 1 times [2022-10-16 10:55:01,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:01,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513620153] [2022-10-16 10:55:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:01,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:55:01,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:01,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513620153] [2022-10-16 10:55:01,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513620153] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:01,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995830108] [2022-10-16 10:55:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:01,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:01,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:01,387 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 10:55:01,389 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 10:55:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:01,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 10:55:01,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:01,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:55:01,505 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:55:01,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 39 treesize of output 31 [2022-10-16 10:55:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:55:01,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:55:01,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995830108] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:55:01,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:55:01,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 10:55:01,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931649843] [2022-10-16 10:55:01,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:55:01,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:55:01,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:01,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:55:01,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:55:01,532 INFO L87 Difference]: Start difference. First operand 175 states and 213 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:01,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:01,626 INFO L93 Difference]: Finished difference Result 175 states and 213 transitions. [2022-10-16 10:55:01,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:55:01,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 10:55:01,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:01,628 INFO L225 Difference]: With dead ends: 175 [2022-10-16 10:55:01,629 INFO L226 Difference]: Without dead ends: 174 [2022-10-16 10:55:01,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:55:01,630 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 30 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:01,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 75 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:55:01,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-10-16 10:55:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-10-16 10:55:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 165 states have (on average 1.2606060606060605) internal successors, (208), 173 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:01,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 208 transitions. [2022-10-16 10:55:01,645 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 208 transitions. Word has length 42 [2022-10-16 10:55:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:01,646 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 208 transitions. [2022-10-16 10:55:01,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:01,646 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 208 transitions. [2022-10-16 10:55:01,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 10:55:01,647 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:01,647 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:01,690 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 10:55:01,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 10:55:01,863 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:01,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:01,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1687435661, now seen corresponding path program 5 times [2022-10-16 10:55:01,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:01,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80847315] [2022-10-16 10:55:01,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:01,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:02,144 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:02,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:02,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80847315] [2022-10-16 10:55:02,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80847315] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:02,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99936555] [2022-10-16 10:55:02,145 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:55:02,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:02,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:02,146 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 10:55:02,148 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 10:55:02,241 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 10:55:02,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:02,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:55:02,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:02,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:02,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99936555] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:02,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:02,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 28 [2022-10-16 10:55:02,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721641899] [2022-10-16 10:55:02,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:02,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 10:55:02,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:02,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 10:55:02,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-10-16 10:55:02,678 INFO L87 Difference]: Start difference. First operand 174 states and 208 transitions. Second operand has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:03,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:03,192 INFO L93 Difference]: Finished difference Result 330 states and 395 transitions. [2022-10-16 10:55:03,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:55:03,193 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-16 10:55:03,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:03,194 INFO L225 Difference]: With dead ends: 330 [2022-10-16 10:55:03,195 INFO L226 Difference]: Without dead ends: 255 [2022-10-16 10:55:03,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 62 SyntacticMatches, 13 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=332, Invalid=1648, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:55:03,197 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 190 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:03,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 339 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:55:03,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-10-16 10:55:03,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 218. [2022-10-16 10:55:03,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 209 states have (on average 1.2344497607655502) internal successors, (258), 217 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 258 transitions. [2022-10-16 10:55:03,214 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 258 transitions. Word has length 43 [2022-10-16 10:55:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:03,215 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 258 transitions. [2022-10-16 10:55:03,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 258 transitions. [2022-10-16 10:55:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 10:55:03,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:03,216 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:03,253 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 10:55:03,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:03,430 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:03,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:03,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1194758214, now seen corresponding path program 1 times [2022-10-16 10:55:03,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:03,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061232488] [2022-10-16 10:55:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:03,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:55:03,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:03,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061232488] [2022-10-16 10:55:03,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061232488] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:03,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124683081] [2022-10-16 10:55:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:03,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:03,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:03,520 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 10:55:03,552 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 10:55:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:03,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:55:03,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:55:03,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:03,685 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:55:03,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124683081] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:03,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:03,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:55:03,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018445476] [2022-10-16 10:55:03,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:03,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:55:03,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:03,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:55:03,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:55:03,687 INFO L87 Difference]: Start difference. First operand 218 states and 258 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:03,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:03,842 INFO L93 Difference]: Finished difference Result 292 states and 351 transitions. [2022-10-16 10:55:03,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:55:03,843 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 10:55:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:03,845 INFO L225 Difference]: With dead ends: 292 [2022-10-16 10:55:03,845 INFO L226 Difference]: Without dead ends: 291 [2022-10-16 10:55:03,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 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 10:55:03,846 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 112 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:03,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 188 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:55:03,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-10-16 10:55:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 266. [2022-10-16 10:55:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 257 states have (on average 1.2879377431906616) internal successors, (331), 265 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 331 transitions. [2022-10-16 10:55:03,875 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 331 transitions. Word has length 44 [2022-10-16 10:55:03,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:03,876 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 331 transitions. [2022-10-16 10:55:03,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:03,877 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 331 transitions. [2022-10-16 10:55:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 10:55:03,878 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:03,878 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:03,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:04,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:04,093 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:04,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:04,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1617200910, now seen corresponding path program 1 times [2022-10-16 10:55:04,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:04,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64411674] [2022-10-16 10:55:04,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:04,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:55:04,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:04,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64411674] [2022-10-16 10:55:04,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64411674] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:04,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948512969] [2022-10-16 10:55:04,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:04,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:04,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:04,214 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:04,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 10:55:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:04,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:55:04,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:55:04,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:55:04,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948512969] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:55:04,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:55:04,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:55:04,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467876946] [2022-10-16 10:55:04,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:55:04,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:55:04,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:04,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:55:04,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:55:04,362 INFO L87 Difference]: Start difference. First operand 266 states and 331 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:04,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:04,452 INFO L93 Difference]: Finished difference Result 268 states and 331 transitions. [2022-10-16 10:55:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:55:04,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-10-16 10:55:04,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:04,454 INFO L225 Difference]: With dead ends: 268 [2022-10-16 10:55:04,455 INFO L226 Difference]: Without dead ends: 267 [2022-10-16 10:55:04,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 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 10:55:04,456 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 30 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:04,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 87 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:55:04,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-10-16 10:55:04,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 265. [2022-10-16 10:55:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 257 states have (on average 1.2490272373540856) internal successors, (321), 264 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 321 transitions. [2022-10-16 10:55:04,477 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 321 transitions. Word has length 45 [2022-10-16 10:55:04,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:04,478 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 321 transitions. [2022-10-16 10:55:04,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:04,478 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 321 transitions. [2022-10-16 10:55:04,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 10:55:04,479 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:04,479 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:04,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:04,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:04,695 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:04,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:04,696 INFO L85 PathProgramCache]: Analyzing trace with hash 411246071, now seen corresponding path program 6 times [2022-10-16 10:55:04,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:04,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351930691] [2022-10-16 10:55:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:04,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:05,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:05,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351930691] [2022-10-16 10:55:05,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351930691] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:05,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005584569] [2022-10-16 10:55:05,805 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:55:05,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:05,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:05,807 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:05,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 10:55:05,906 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-10-16 10:55:05,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:05,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 10:55:05,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:06,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:55:06,091 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:06,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:06,173 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:06,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:06,257 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:06,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:06,353 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:06,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:06,578 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 16 treesize of output 14 [2022-10-16 10:55:06,583 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 20 treesize of output 16 [2022-10-16 10:55:06,616 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:06,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005584569] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:06,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:06,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 42 [2022-10-16 10:55:06,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640190172] [2022-10-16 10:55:06,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:06,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 10:55:06,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:06,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 10:55:06,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1571, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 10:55:06,620 INFO L87 Difference]: Start difference. First operand 265 states and 321 transitions. Second operand has 42 states, 42 states have (on average 2.6904761904761907) internal successors, (113), 42 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:07,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:07,743 INFO L93 Difference]: Finished difference Result 343 states and 418 transitions. [2022-10-16 10:55:07,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 10:55:07,744 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.6904761904761907) internal successors, (113), 42 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 10:55:07,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:07,746 INFO L225 Difference]: With dead ends: 343 [2022-10-16 10:55:07,746 INFO L226 Difference]: Without dead ends: 275 [2022-10-16 10:55:07,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=245, Invalid=2511, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:55:07,748 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 117 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:07,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 859 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 10:55:07,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-10-16 10:55:07,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 261. [2022-10-16 10:55:07,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 253 states have (on average 1.2411067193675889) internal successors, (314), 260 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:07,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 314 transitions. [2022-10-16 10:55:07,773 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 314 transitions. Word has length 47 [2022-10-16 10:55:07,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:07,774 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 314 transitions. [2022-10-16 10:55:07,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.6904761904761907) internal successors, (113), 42 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:07,774 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 314 transitions. [2022-10-16 10:55:07,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 10:55:07,775 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:07,775 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-10-16 10:55:07,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:07,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 10:55:07,990 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:07,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:07,990 INFO L85 PathProgramCache]: Analyzing trace with hash 377560238, now seen corresponding path program 1 times [2022-10-16 10:55:07,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:07,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616474111] [2022-10-16 10:55:07,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:07,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-16 10:55:08,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:08,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616474111] [2022-10-16 10:55:08,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616474111] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:08,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159149383] [2022-10-16 10:55:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:08,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:08,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:08,088 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:08,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 10:55:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:08,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 10:55:08,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:55:08,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:08,482 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:55:08,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159149383] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:08,482 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:08,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 24 [2022-10-16 10:55:08,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203808724] [2022-10-16 10:55:08,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:08,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 10:55:08,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:08,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 10:55:08,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:55:08,485 INFO L87 Difference]: Start difference. First operand 261 states and 314 transitions. Second operand has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:09,016 INFO L93 Difference]: Finished difference Result 571 states and 679 transitions. [2022-10-16 10:55:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 10:55:09,017 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-16 10:55:09,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:09,020 INFO L225 Difference]: With dead ends: 571 [2022-10-16 10:55:09,021 INFO L226 Difference]: Without dead ends: 564 [2022-10-16 10:55:09,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=508, Invalid=1748, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 10:55:09,023 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 531 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:09,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 314 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:55:09,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-10-16 10:55:09,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 339. [2022-10-16 10:55:09,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 331 states have (on average 1.2356495468277946) internal successors, (409), 338 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 409 transitions. [2022-10-16 10:55:09,051 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 409 transitions. Word has length 49 [2022-10-16 10:55:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:09,052 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 409 transitions. [2022-10-16 10:55:09,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 25 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 409 transitions. [2022-10-16 10:55:09,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 10:55:09,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:09,053 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:09,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:09,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 10:55:09,267 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:09,267 INFO L85 PathProgramCache]: Analyzing trace with hash 522181700, now seen corresponding path program 4 times [2022-10-16 10:55:09,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:09,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674123248] [2022-10-16 10:55:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:09,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:09,284 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:09,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70707000] [2022-10-16 10:55:09,284 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:55:09,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:09,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:09,286 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:09,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 10:55:09,381 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:55:09,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:09,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:55:09,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:09,544 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 37 treesize of output 17 [2022-10-16 10:55:09,655 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:09,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:09,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:55:09,738 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 16 treesize of output 18 [2022-10-16 10:55:09,799 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 19 treesize of output 7 [2022-10-16 10:55:09,811 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:55:09,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:09,869 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6)) is different from false [2022-10-16 10:55:09,884 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:55:09,901 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6)) is different from false [2022-10-16 10:55:09,928 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int)) (or (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_126|)))) is different from false [2022-10-16 10:55:09,950 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_126| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:55:17,002 INFO L356 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-10-16 10:55:17,003 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 43 [2022-10-16 10:55:17,011 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:55:17,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 38 treesize of output 34 [2022-10-16 10:55:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 22 not checked. [2022-10-16 10:55:17,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:17,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674123248] [2022-10-16 10:55:17,138 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:55:17,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70707000] [2022-10-16 10:55:17,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70707000] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:17,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:55:17,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2022-10-16 10:55:17,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538179] [2022-10-16 10:55:17,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:17,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-16 10:55:17,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:17,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-16 10:55:17,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=535, Unknown=25, NotChecked=260, Total=930 [2022-10-16 10:55:17,141 INFO L87 Difference]: Start difference. First operand 339 states and 409 transitions. Second operand has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 31 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:17,938 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (= 6 (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_126| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:55:19,942 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int)) (or (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_126|)))) (<= 1 |c_ULTIMATE.start_main_#t~post7#1|))) is different from false [2022-10-16 10:55:22,084 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (forall ((v_ArrVal_800 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_126| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))))) is different from false [2022-10-16 10:55:24,101 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (forall ((v_ArrVal_800 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int)) (or (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_126|)))))) is different from false [2022-10-16 10:55:26,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:26,487 INFO L93 Difference]: Finished difference Result 525 states and 651 transitions. [2022-10-16 10:55:26,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 10:55:26,488 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 31 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-16 10:55:26,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:26,491 INFO L225 Difference]: With dead ends: 525 [2022-10-16 10:55:26,491 INFO L226 Difference]: Without dead ends: 456 [2022-10-16 10:55:26,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 73 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=167, Invalid=827, Unknown=34, NotChecked=612, Total=1640 [2022-10-16 10:55:26,493 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 93 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 501 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:26,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 379 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 524 Invalid, 0 Unknown, 501 Unchecked, 0.4s Time] [2022-10-16 10:55:26,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-10-16 10:55:26,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 363. [2022-10-16 10:55:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 355 states have (on average 1.2253521126760563) internal successors, (435), 362 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 435 transitions. [2022-10-16 10:55:26,526 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 435 transitions. Word has length 52 [2022-10-16 10:55:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:26,527 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 435 transitions. [2022-10-16 10:55:26,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 31 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 435 transitions. [2022-10-16 10:55:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 10:55:26,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:26,528 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:26,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:26,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 10:55:26,729 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 819079367, now seen corresponding path program 7 times [2022-10-16 10:55:26,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:26,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292542128] [2022-10-16 10:55:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:26,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:27,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:27,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292542128] [2022-10-16 10:55:27,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292542128] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:27,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778175383] [2022-10-16 10:55:27,122 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:55:27,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:27,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:27,124 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:27,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 10:55:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:27,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 10:55:27,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:27,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:27,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778175383] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:27,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:27,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 34 [2022-10-16 10:55:27,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370688112] [2022-10-16 10:55:27,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:27,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:55:27,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:27,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:55:27,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:55:27,861 INFO L87 Difference]: Start difference. First operand 363 states and 435 transitions. Second operand has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:28,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:28,755 INFO L93 Difference]: Finished difference Result 544 states and 648 transitions. [2022-10-16 10:55:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 10:55:28,756 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-16 10:55:28,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:28,759 INFO L225 Difference]: With dead ends: 544 [2022-10-16 10:55:28,759 INFO L226 Difference]: Without dead ends: 458 [2022-10-16 10:55:28,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 78 SyntacticMatches, 17 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1401 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=599, Invalid=3183, Unknown=0, NotChecked=0, Total=3782 [2022-10-16 10:55:28,762 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 294 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:28,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 326 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:55:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-10-16 10:55:28,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 386. [2022-10-16 10:55:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 378 states have (on average 1.216931216931217) internal successors, (460), 385 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:28,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 460 transitions. [2022-10-16 10:55:28,797 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 460 transitions. Word has length 54 [2022-10-16 10:55:28,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:28,797 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 460 transitions. [2022-10-16 10:55:28,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:28,797 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 460 transitions. [2022-10-16 10:55:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 10:55:28,798 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:28,798 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:28,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:28,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:29,000 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash -878456120, now seen corresponding path program 5 times [2022-10-16 10:55:29,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:29,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537911511] [2022-10-16 10:55:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:29,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:29,030 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:29,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876016093] [2022-10-16 10:55:29,030 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:55:29,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:29,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:29,031 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:29,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 10:55:29,202 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 10:55:29,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:29,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 10:55:29,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 10:55:29,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 10:55:29,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:29,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537911511] [2022-10-16 10:55:29,642 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:55:29,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876016093] [2022-10-16 10:55:29,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876016093] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:29,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:55:29,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2022-10-16 10:55:29,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814249449] [2022-10-16 10:55:29,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:29,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 10:55:29,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:29,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 10:55:29,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:55:29,644 INFO L87 Difference]: Start difference. First operand 386 states and 460 transitions. Second operand has 25 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:30,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:30,276 INFO L93 Difference]: Finished difference Result 482 states and 560 transitions. [2022-10-16 10:55:30,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 10:55:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-16 10:55:30,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:30,288 INFO L225 Difference]: With dead ends: 482 [2022-10-16 10:55:30,288 INFO L226 Difference]: Without dead ends: 400 [2022-10-16 10:55:30,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=371, Invalid=1699, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 10:55:30,290 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 218 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:30,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 297 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:55:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-10-16 10:55:30,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 396. [2022-10-16 10:55:30,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 388 states have (on average 1.208762886597938) internal successors, (469), 395 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 469 transitions. [2022-10-16 10:55:30,323 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 469 transitions. Word has length 55 [2022-10-16 10:55:30,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:30,324 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 469 transitions. [2022-10-16 10:55:30,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:30,324 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 469 transitions. [2022-10-16 10:55:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 10:55:30,325 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:30,325 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:30,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:30,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:30,539 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash -970475837, now seen corresponding path program 8 times [2022-10-16 10:55:30,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:30,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294323941] [2022-10-16 10:55:30,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:30,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:31,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:31,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294323941] [2022-10-16 10:55:31,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294323941] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:31,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299348159] [2022-10-16 10:55:31,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:55:31,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:31,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:31,566 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:31,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 10:55:31,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:55:31,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:31,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:55:31,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:31,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:55:31,759 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:31,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:31,821 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:31,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:31,915 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:31,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:32,010 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:32,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:32,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:32,233 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 16 treesize of output 14 [2022-10-16 10:55:32,236 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 20 treesize of output 16 [2022-10-16 10:55:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:32,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299348159] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:32,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:32,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 32 [2022-10-16 10:55:32,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196621595] [2022-10-16 10:55:32,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:32,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 10:55:32,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:32,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 10:55:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:55:32,293 INFO L87 Difference]: Start difference. First operand 396 states and 469 transitions. Second operand has 32 states, 32 states have (on average 2.875) internal successors, (92), 32 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:33,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:33,546 INFO L93 Difference]: Finished difference Result 541 states and 660 transitions. [2022-10-16 10:55:33,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 10:55:33,547 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.875) internal successors, (92), 32 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-16 10:55:33,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:33,549 INFO L225 Difference]: With dead ends: 541 [2022-10-16 10:55:33,549 INFO L226 Difference]: Without dead ends: 423 [2022-10-16 10:55:33,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 106 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:55:33,551 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 85 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:33,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 826 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 10:55:33,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-10-16 10:55:33,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 398. [2022-10-16 10:55:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 390 states have (on average 1.2076923076923076) internal successors, (471), 397 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:33,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 471 transitions. [2022-10-16 10:55:33,589 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 471 transitions. Word has length 58 [2022-10-16 10:55:33,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:33,590 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 471 transitions. [2022-10-16 10:55:33,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.875) internal successors, (92), 32 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:33,590 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 471 transitions. [2022-10-16 10:55:33,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 10:55:33,591 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:33,591 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:33,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-10-16 10:55:33,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-16 10:55:33,805 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:33,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:33,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1085736359, now seen corresponding path program 6 times [2022-10-16 10:55:33,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:33,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080519118] [2022-10-16 10:55:33,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:33,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:33,824 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:33,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066557562] [2022-10-16 10:55:33,825 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:55:33,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:33,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:33,826 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:33,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 10:55:33,944 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-10-16 10:55:33,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:33,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 10:55:33,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:33,956 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 10:55:34,241 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 37 treesize of output 17 [2022-10-16 10:55:34,523 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 10:55:34,668 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 10:55:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 10:55:34,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:34,971 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_999 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_999) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:55:34,984 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_999 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_999) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:55:34,992 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_999 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_999) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:55:35,007 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_999 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_999) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:55:35,351 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:55:35,351 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 31 [2022-10-16 10:55:35,361 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:55:35,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 38 treesize of output 34 [2022-10-16 10:55:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 9 trivial. 11 not checked. [2022-10-16 10:55:35,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:35,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080519118] [2022-10-16 10:55:35,689 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:55:35,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066557562] [2022-10-16 10:55:35,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066557562] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:35,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:55:35,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 40 [2022-10-16 10:55:35,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899377218] [2022-10-16 10:55:35,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:35,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:55:35,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:35,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:55:35,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1117, Unknown=6, NotChecked=284, Total=1560 [2022-10-16 10:55:35,692 INFO L87 Difference]: Start difference. First operand 398 states and 471 transitions. Second operand has 40 states, 40 states have (on average 2.05) internal successors, (82), 40 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:37,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:37,166 INFO L93 Difference]: Finished difference Result 400 states and 471 transitions. [2022-10-16 10:55:37,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-16 10:55:37,166 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.05) internal successors, (82), 40 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-10-16 10:55:37,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:37,168 INFO L225 Difference]: With dead ends: 400 [2022-10-16 10:55:37,168 INFO L226 Difference]: Without dead ends: 356 [2022-10-16 10:55:37,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 77 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=431, Invalid=2884, Unknown=7, NotChecked=460, Total=3782 [2022-10-16 10:55:37,170 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 127 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 913 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:37,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 415 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 498 Invalid, 0 Unknown, 913 Unchecked, 0.3s Time] [2022-10-16 10:55:37,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-10-16 10:55:37,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-10-16 10:55:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 348 states have (on average 1.2270114942528736) internal successors, (427), 355 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:37,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 427 transitions. [2022-10-16 10:55:37,213 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 427 transitions. Word has length 59 [2022-10-16 10:55:37,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:37,213 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 427 transitions. [2022-10-16 10:55:37,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.05) internal successors, (82), 40 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:37,213 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 427 transitions. [2022-10-16 10:55:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 10:55:37,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:37,214 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:37,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:37,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 10:55:37,422 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:37,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2026433844, now seen corresponding path program 2 times [2022-10-16 10:55:37,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:37,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065952403] [2022-10-16 10:55:37,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:37,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 10:55:37,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:37,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065952403] [2022-10-16 10:55:37,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065952403] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:37,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753719411] [2022-10-16 10:55:37,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:55:37,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:37,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:37,606 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:37,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 10:55:37,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:55:37,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:37,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:55:37,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:55:37,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:37,856 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:55:37,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753719411] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:37,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:37,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:55:37,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343074068] [2022-10-16 10:55:37,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:37,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:55:37,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:37,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:55:37,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:55:37,859 INFO L87 Difference]: Start difference. First operand 356 states and 427 transitions. Second operand has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:38,149 INFO L93 Difference]: Finished difference Result 374 states and 447 transitions. [2022-10-16 10:55:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:55:38,150 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-10-16 10:55:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:38,152 INFO L225 Difference]: With dead ends: 374 [2022-10-16 10:55:38,152 INFO L226 Difference]: Without dead ends: 373 [2022-10-16 10:55:38,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:55:38,153 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 139 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:38,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 148 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:55:38,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-10-16 10:55:38,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 355. [2022-10-16 10:55:38,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 348 states have (on average 1.2155172413793103) internal successors, (423), 354 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 423 transitions. [2022-10-16 10:55:38,185 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 423 transitions. Word has length 61 [2022-10-16 10:55:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:38,185 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 423 transitions. [2022-10-16 10:55:38,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 423 transitions. [2022-10-16 10:55:38,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 10:55:38,186 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:38,186 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:38,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-10-16 10:55:38,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:38,400 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:38,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:38,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1574972464, now seen corresponding path program 7 times [2022-10-16 10:55:38,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:38,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788499121] [2022-10-16 10:55:38,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:38,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:38,416 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:38,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485391489] [2022-10-16 10:55:38,416 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:55:38,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:38,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:38,417 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:38,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 10:55:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:38,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 10:55:38,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 10:55:38,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 10:55:38,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:38,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788499121] [2022-10-16 10:55:38,860 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:55:38,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485391489] [2022-10-16 10:55:38,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485391489] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:38,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:55:38,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 23 [2022-10-16 10:55:38,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128144973] [2022-10-16 10:55:38,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:38,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 10:55:38,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:38,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 10:55:38,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-10-16 10:55:38,863 INFO L87 Difference]: Start difference. First operand 355 states and 423 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:39,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:39,334 INFO L93 Difference]: Finished difference Result 446 states and 534 transitions. [2022-10-16 10:55:39,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 10:55:39,335 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-16 10:55:39,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:39,336 INFO L225 Difference]: With dead ends: 446 [2022-10-16 10:55:39,336 INFO L226 Difference]: Without dead ends: 323 [2022-10-16 10:55:39,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 98 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=1133, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 10:55:39,338 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 199 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:39,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 252 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:55:39,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-10-16 10:55:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 321. [2022-10-16 10:55:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 314 states have (on average 1.21656050955414) internal successors, (382), 320 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 382 transitions. [2022-10-16 10:55:39,366 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 382 transitions. Word has length 63 [2022-10-16 10:55:39,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:39,366 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 382 transitions. [2022-10-16 10:55:39,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 382 transitions. [2022-10-16 10:55:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 10:55:39,367 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:39,367 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:39,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-10-16 10:55:39,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:39,579 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:39,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:39,580 INFO L85 PathProgramCache]: Analyzing trace with hash 482497147, now seen corresponding path program 9 times [2022-10-16 10:55:39,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:39,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195396671] [2022-10-16 10:55:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:39,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 51 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:40,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:40,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195396671] [2022-10-16 10:55:40,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195396671] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:40,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742384122] [2022-10-16 10:55:40,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:55:40,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:40,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:40,127 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:40,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 10:55:40,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-10-16 10:55:40,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:40,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 10:55:40,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 80 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:40,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 80 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:41,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742384122] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:41,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:41,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 40 [2022-10-16 10:55:41,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136920916] [2022-10-16 10:55:41,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:41,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:55:41,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:41,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:55:41,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 10:55:41,239 INFO L87 Difference]: Start difference. First operand 321 states and 382 transitions. Second operand has 40 states, 40 states have (on average 2.875) internal successors, (115), 40 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:42,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:42,231 INFO L93 Difference]: Finished difference Result 508 states and 604 transitions. [2022-10-16 10:55:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 10:55:42,234 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.875) internal successors, (115), 40 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-16 10:55:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:42,237 INFO L225 Difference]: With dead ends: 508 [2022-10-16 10:55:42,237 INFO L226 Difference]: Without dead ends: 423 [2022-10-16 10:55:42,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 94 SyntacticMatches, 21 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1811 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=702, Invalid=3854, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 10:55:42,240 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 375 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:42,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 377 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:55:42,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-10-16 10:55:42,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 358. [2022-10-16 10:55:42,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 351 states have (on average 1.1965811965811965) internal successors, (420), 357 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:42,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 420 transitions. [2022-10-16 10:55:42,282 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 420 transitions. Word has length 65 [2022-10-16 10:55:42,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:42,283 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 420 transitions. [2022-10-16 10:55:42,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.875) internal successors, (115), 40 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:42,283 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 420 transitions. [2022-10-16 10:55:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 10:55:42,284 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:42,284 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:42,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:42,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:42,497 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:42,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1153339649, now seen corresponding path program 10 times [2022-10-16 10:55:42,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:42,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777140714] [2022-10-16 10:55:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:42,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:43,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:43,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777140714] [2022-10-16 10:55:43,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777140714] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:43,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388907503] [2022-10-16 10:55:43,866 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:55:43,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:43,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:43,867 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:43,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 10:55:43,987 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:55:43,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:43,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 63 conjunts are in the unsatisfiable core [2022-10-16 10:55:43,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:44,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:55:44,119 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:44,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:44,198 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:44,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:44,311 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:44,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:44,425 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:44,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:44,542 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:44,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:44,684 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:44,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:44,841 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 16 treesize of output 14 [2022-10-16 10:55:44,844 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 20 treesize of output 16 [2022-10-16 10:55:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:44,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388907503] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:44,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:44,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26, 26] total 38 [2022-10-16 10:55:44,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865776933] [2022-10-16 10:55:44,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:44,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 10:55:44,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:44,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 10:55:44,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1300, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 10:55:44,909 INFO L87 Difference]: Start difference. First operand 358 states and 420 transitions. Second operand has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 38 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:46,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:46,659 INFO L93 Difference]: Finished difference Result 516 states and 624 transitions. [2022-10-16 10:55:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 10:55:46,661 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 38 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-16 10:55:46,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:46,663 INFO L225 Difference]: With dead ends: 516 [2022-10-16 10:55:46,663 INFO L226 Difference]: Without dead ends: 399 [2022-10-16 10:55:46,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 127 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=2660, Unknown=0, NotChecked=0, Total=2862 [2022-10-16 10:55:46,665 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:46,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1024 Invalid, 2397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 10:55:46,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-10-16 10:55:46,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 372. [2022-10-16 10:55:46,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 365 states have (on average 1.1945205479452055) internal successors, (436), 371 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 436 transitions. [2022-10-16 10:55:46,699 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 436 transitions. Word has length 69 [2022-10-16 10:55:46,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:46,700 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 436 transitions. [2022-10-16 10:55:46,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 38 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 436 transitions. [2022-10-16 10:55:46,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 10:55:46,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:46,701 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:46,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:46,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 10:55:46,914 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:46,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:46,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1198011565, now seen corresponding path program 8 times [2022-10-16 10:55:46,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:46,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097639521] [2022-10-16 10:55:46,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:46,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:46,934 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:46,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [772403699] [2022-10-16 10:55:46,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:55:46,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:46,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:46,936 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:46,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 10:55:47,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:55:47,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:47,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 10:55:47,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:47,069 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 10:55:47,219 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 37 treesize of output 17 [2022-10-16 10:55:47,333 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:47,334 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:47,422 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 16 treesize of output 18 [2022-10-16 10:55:47,509 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 16 treesize of output 18 [2022-10-16 10:55:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:55:47,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:47,676 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1289 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:55:47,691 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1289 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:55:47,700 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1289 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:55:47,718 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1289 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:55:47,742 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:55:47,778 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_229|)))) is different from false [2022-10-16 10:55:47,799 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:55:47,830 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ 5 |c_ULTIMATE.start_main_#t~mem9#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:55:49,926 INFO L356 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-10-16 10:55:49,926 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 43 [2022-10-16 10:55:49,934 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:55:49,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 38 treesize of output 34 [2022-10-16 10:55:50,023 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 46 not checked. [2022-10-16 10:55:50,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:50,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097639521] [2022-10-16 10:55:50,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:55:50,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772403699] [2022-10-16 10:55:50,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772403699] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:50,024 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:55:50,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 34 [2022-10-16 10:55:50,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578590544] [2022-10-16 10:55:50,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:50,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:55:50,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:50,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:55:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=571, Unknown=8, NotChecked=440, Total=1122 [2022-10-16 10:55:50,028 INFO L87 Difference]: Start difference. First operand 372 states and 436 transitions. Second operand has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:50,882 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 6 (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= 2 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:55:52,887 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_#t~post7#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6)) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_229|)))) (= (select .cse0 .cse1) 6))) is different from false [2022-10-16 10:55:53,645 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 .cse1 v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 6)) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 .cse1 (+ 5 |c_ULTIMATE.start_main_#t~mem9#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= (select .cse0 .cse2) 6))) is different from false [2022-10-16 10:55:54,286 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (forall ((v_ArrVal_1289 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse0 .cse1) 6))) is different from false [2022-10-16 10:55:56,290 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((v_ArrVal_1289 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 6)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 6)) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_229|)))) (= (select .cse1 .cse0) 6))) is different from false [2022-10-16 10:55:56,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:56,834 INFO L93 Difference]: Finished difference Result 513 states and 607 transitions. [2022-10-16 10:55:56,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 10:55:56,834 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-10-16 10:55:56,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:56,837 INFO L225 Difference]: With dead ends: 513 [2022-10-16 10:55:56,837 INFO L226 Difference]: Without dead ends: 462 [2022-10-16 10:55:56,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 106 SyntacticMatches, 10 SemanticMatches, 45 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=170, Invalid=991, Unknown=13, NotChecked=988, Total=2162 [2022-10-16 10:55:56,839 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 87 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 747 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:56,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 550 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 802 Invalid, 0 Unknown, 747 Unchecked, 0.5s Time] [2022-10-16 10:55:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-10-16 10:55:56,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 406. [2022-10-16 10:55:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 399 states have (on average 1.1854636591478698) internal successors, (473), 405 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:56,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 473 transitions. [2022-10-16 10:55:56,874 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 473 transitions. Word has length 70 [2022-10-16 10:55:56,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:56,874 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 473 transitions. [2022-10-16 10:55:56,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:55:56,874 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 473 transitions. [2022-10-16 10:55:56,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 10:55:56,875 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:56,875 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:56,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-10-16 10:55:57,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 10:55:57,081 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:57,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:57,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1968023236, now seen corresponding path program 9 times [2022-10-16 10:55:57,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:57,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114686484] [2022-10-16 10:55:57,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:57,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:57,100 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:57,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565746859] [2022-10-16 10:55:57,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:55:57,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:57,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:57,102 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:57,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 10:55:57,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-10-16 10:55:57,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:57,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 81 conjunts are in the unsatisfiable core [2022-10-16 10:55:57,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:57,333 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 10:55:57,706 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 37 treesize of output 17 [2022-10-16 10:55:57,858 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 28 treesize of output 27 [2022-10-16 10:55:57,993 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 28 treesize of output 27 [2022-10-16 10:55:58,302 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:55:58,302 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 1 case distinctions, treesize of input 49 treesize of output 32 [2022-10-16 10:55:58,992 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 30 [2022-10-16 10:55:59,410 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 36 proven. 85 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:55:59,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:59,683 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1358 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1358) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (not (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0))) is different from false [2022-10-16 10:55:59,713 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 1 c_~N~0)) (forall ((v_ArrVal_1358 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1358) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6))) is different from false [2022-10-16 10:56:02,258 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:56:02,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 95 treesize of output 76 [2022-10-16 10:56:02,276 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:56:02,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 50 [2022-10-16 10:56:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-10-16 10:56:03,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:56:03,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114686484] [2022-10-16 10:56:03,837 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:56:03,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565746859] [2022-10-16 10:56:03,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565746859] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:56:03,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:56:03,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 37] total 70 [2022-10-16 10:56:03,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098241560] [2022-10-16 10:56:03,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:56:03,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-10-16 10:56:03,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:56:03,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-10-16 10:56:03,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=434, Invalid=4117, Unknown=13, NotChecked=266, Total=4830 [2022-10-16 10:56:03,840 INFO L87 Difference]: Start difference. First operand 406 states and 473 transitions. Second operand has 70 states, 70 states have (on average 2.0428571428571427) internal successors, (143), 70 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:13,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:56:13,855 INFO L93 Difference]: Finished difference Result 463 states and 540 transitions. [2022-10-16 10:56:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-10-16 10:56:13,856 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 2.0428571428571427) internal successors, (143), 70 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-16 10:56:13,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:56:13,858 INFO L225 Difference]: With dead ends: 463 [2022-10-16 10:56:13,858 INFO L226 Difference]: Without dead ends: 428 [2022-10-16 10:56:13,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 110 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 2784 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=1374, Invalid=10600, Unknown=24, NotChecked=434, Total=12432 [2022-10-16 10:56:13,861 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 147 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1500 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:56:13,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 690 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1011 Invalid, 0 Unknown, 1500 Unchecked, 0.7s Time] [2022-10-16 10:56:13,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-10-16 10:56:13,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 399. [2022-10-16 10:56:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 392 states have (on average 1.1887755102040816) internal successors, (466), 398 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:13,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 466 transitions. [2022-10-16 10:56:13,892 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 466 transitions. Word has length 74 [2022-10-16 10:56:13,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:56:13,892 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 466 transitions. [2022-10-16 10:56:13,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.0428571428571427) internal successors, (143), 70 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:13,893 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 466 transitions. [2022-10-16 10:56:13,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 10:56:13,893 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:56:13,894 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:56:13,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-10-16 10:56:14,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 10:56:14,095 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:56:14,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:56:14,096 INFO L85 PathProgramCache]: Analyzing trace with hash 445652671, now seen corresponding path program 11 times [2022-10-16 10:56:14,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:56:14,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203755275] [2022-10-16 10:56:14,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:56:14,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:56:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:56:14,884 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 81 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:14,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:56:14,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203755275] [2022-10-16 10:56:14,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203755275] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:56:14,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889480970] [2022-10-16 10:56:14,885 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:56:14,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:14,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:56:14,886 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:56:14,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-16 10:56:15,099 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-10-16 10:56:15,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:56:15,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 10:56:15,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:56:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 117 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:15,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:56:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 117 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:16,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889480970] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:56:16,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:56:16,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 46 [2022-10-16 10:56:16,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350481740] [2022-10-16 10:56:16,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:56:16,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-10-16 10:56:16,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:56:16,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-10-16 10:56:16,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1784, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 10:56:16,570 INFO L87 Difference]: Start difference. First operand 399 states and 466 transitions. Second operand has 46 states, 46 states have (on average 2.891304347826087) internal successors, (133), 46 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:18,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:56:18,849 INFO L93 Difference]: Finished difference Result 618 states and 722 transitions. [2022-10-16 10:56:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 10:56:18,851 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.891304347826087) internal successors, (133), 46 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-16 10:56:18,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:56:18,853 INFO L225 Difference]: With dead ends: 618 [2022-10-16 10:56:18,853 INFO L226 Difference]: Without dead ends: 533 [2022-10-16 10:56:18,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 110 SyntacticMatches, 25 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3154 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1265, Invalid=7107, Unknown=0, NotChecked=0, Total=8372 [2022-10-16 10:56:18,855 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 403 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:56:18,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 524 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 10:56:18,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-10-16 10:56:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 443. [2022-10-16 10:56:18,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 436 states have (on average 1.1743119266055047) internal successors, (512), 442 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 512 transitions. [2022-10-16 10:56:18,896 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 512 transitions. Word has length 76 [2022-10-16 10:56:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:56:18,896 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 512 transitions. [2022-10-16 10:56:18,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.891304347826087) internal successors, (133), 46 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:18,896 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 512 transitions. [2022-10-16 10:56:18,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 10:56:18,897 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:56:18,898 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:56:18,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-10-16 10:56:19,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-10-16 10:56:19,104 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:56:19,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:56:19,105 INFO L85 PathProgramCache]: Analyzing trace with hash 952699344, now seen corresponding path program 10 times [2022-10-16 10:56:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:56:19,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677287910] [2022-10-16 10:56:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:56:19,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:56:19,123 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:56:19,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470362760] [2022-10-16 10:56:19,123 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:56:19,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:19,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:56:19,124 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:56:19,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-10-16 10:56:19,260 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:56:19,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:56:19,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 46 conjunts are in the unsatisfiable core [2022-10-16 10:56:19,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:56:19,722 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 31 treesize of output 15 [2022-10-16 10:56:19,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:56:19,883 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 16 treesize of output 18 [2022-10-16 10:56:20,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:56:20,028 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 16 treesize of output 18 [2022-10-16 10:56:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:56:20,199 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 16 treesize of output 18 [2022-10-16 10:56:20,332 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 19 treesize of output 7 [2022-10-16 10:56:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:56:20,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:56:20,512 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6)) is different from false [2022-10-16 10:56:20,526 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:56:20,533 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:56:20,549 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:56:20,556 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:56:20,574 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:56:20,597 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ 5 |c_ULTIMATE.start_main_#t~mem9#1|))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:56:20,682 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:56:20,683 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 31 [2022-10-16 10:56:20,690 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:56:20,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 38 treesize of output 34 [2022-10-16 10:56:21,095 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 28 trivial. 46 not checked. [2022-10-16 10:56:21,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:56:21,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677287910] [2022-10-16 10:56:21,096 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:56:21,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470362760] [2022-10-16 10:56:21,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470362760] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:56:21,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:56:21,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 41 [2022-10-16 10:56:21,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997049233] [2022-10-16 10:56:21,097 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:56:21,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-16 10:56:21,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:56:21,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-16 10:56:21,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=994, Unknown=7, NotChecked=490, Total=1640 [2022-10-16 10:56:21,099 INFO L87 Difference]: Start difference. First operand 443 states and 512 transitions. Second operand has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:56:22,847 INFO L93 Difference]: Finished difference Result 565 states and 651 transitions. [2022-10-16 10:56:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 10:56:22,847 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-16 10:56:22,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:56:22,849 INFO L225 Difference]: With dead ends: 565 [2022-10-16 10:56:22,849 INFO L226 Difference]: Without dead ends: 532 [2022-10-16 10:56:22,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 114 SyntacticMatches, 12 SemanticMatches, 48 ConstructedPredicates, 7 IntricatePredicates, 1 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=238, Invalid=1589, Unknown=7, NotChecked=616, Total=2450 [2022-10-16 10:56:22,851 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 288 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 737 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:56:22,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 713 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1289 Invalid, 0 Unknown, 737 Unchecked, 0.8s Time] [2022-10-16 10:56:22,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-10-16 10:56:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 488. [2022-10-16 10:56:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 481 states have (on average 1.162162162162162) internal successors, (559), 487 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 559 transitions. [2022-10-16 10:56:22,891 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 559 transitions. Word has length 77 [2022-10-16 10:56:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:56:22,892 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 559 transitions. [2022-10-16 10:56:22,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:56:22,892 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 559 transitions. [2022-10-16 10:56:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 10:56:22,893 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:56:22,893 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:56:22,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-10-16 10:56:23,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:23,097 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:56:23,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:56:23,098 INFO L85 PathProgramCache]: Analyzing trace with hash 952699152, now seen corresponding path program 2 times [2022-10-16 10:56:23,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:56:23,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870568302] [2022-10-16 10:56:23,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:56:23,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:56:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:56:23,952 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 10:56:23,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:56:23,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870568302] [2022-10-16 10:56:23,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870568302] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:56:23,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695635760] [2022-10-16 10:56:23,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:56:23,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:23,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:56:23,955 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:56:23,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-16 10:56:24,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:56:24,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:56:24,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 10:56:24,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:56:24,096 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 10:56:24,101 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:56:24,128 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 10:56:24,144 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 10:56:24,163 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 10:56:24,178 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 10:56:24,211 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 10:56:24,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 10:56:24,268 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 10:56:24,296 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 10:56:24,438 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 47 treesize of output 30 [2022-10-16 10:56:24,675 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-10-16 10:56:24,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 44 [2022-10-16 10:56:25,011 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-10-16 10:56:25,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 60 [2022-10-16 10:56:25,296 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:56:25,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 97 treesize of output 97 [2022-10-16 10:56:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-10-16 10:56:25,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:56:49,339 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|v_ULTIMATE.start_main_~i~0#1_289| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (|v_ULTIMATE.start_main_~i~0#1_285| Int) (v_ArrVal_1553 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_287| Int) (v_ArrVal_1556 Int) (v_ArrVal_1555 Int) (v_ArrVal_1558 Int)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_1553))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1558)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_285| 4)))) (.cse0 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1556)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_287| 4)))) (.cse1 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1555)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_289| 4)))) (.cse3 (select v_ArrVal_1553 (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))))) (or (< 6 .cse0) (< 6 .cse1) (< (+ v_ArrVal_1558 .cse2) 9223372036854775808) (< 6 .cse2) (< (+ .cse0 v_ArrVal_1556) v_ArrVal_1558) (< (+ .cse3 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_1555) (< (+ .cse1 v_ArrVal_1555) v_ArrVal_1556) (< 6 .cse3)))))) is different from false [2022-10-16 10:56:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 29 refuted. 1 times theorem prover too weak. 61 trivial. 13 not checked. [2022-10-16 10:56:53,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695635760] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:56:53,631 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:56:53,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 39 [2022-10-16 10:56:53,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599504547] [2022-10-16 10:56:53,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:56:53,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:56:53,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:56:53,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:56:53,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1176, Unknown=10, NotChecked=74, Total=1560 [2022-10-16 10:56:53,634 INFO L87 Difference]: Start difference. First operand 488 states and 559 transitions. Second operand has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:57:20,436 INFO L93 Difference]: Finished difference Result 578 states and 679 transitions. [2022-10-16 10:57:20,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 10:57:20,436 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-16 10:57:20,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:57:20,438 INFO L225 Difference]: With dead ends: 578 [2022-10-16 10:57:20,439 INFO L226 Difference]: Without dead ends: 577 [2022-10-16 10:57:20,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 138 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=654, Invalid=2412, Unknown=18, NotChecked=108, Total=3192 [2022-10-16 10:57:20,440 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 60 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 159 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:57:20,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 343 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 159 Unchecked, 0.1s Time] [2022-10-16 10:57:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-10-16 10:57:20,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 540. [2022-10-16 10:57:20,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 533 states have (on average 1.176360225140713) internal successors, (627), 539 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 627 transitions. [2022-10-16 10:57:20,501 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 627 transitions. Word has length 77 [2022-10-16 10:57:20,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:57:20,502 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 627 transitions. [2022-10-16 10:57:20,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 627 transitions. [2022-10-16 10:57:20,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 10:57:20,503 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:57:20,503 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:57:20,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-10-16 10:57:20,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-10-16 10:57:20,716 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:57:20,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:57:20,717 INFO L85 PathProgramCache]: Analyzing trace with hash -917434056, now seen corresponding path program 11 times [2022-10-16 10:57:20,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:57:20,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402556477] [2022-10-16 10:57:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:57:20,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:57:20,732 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:57:20,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549367926] [2022-10-16 10:57:20,733 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:57:20,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:57:20,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:57:20,734 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:57:20,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-10-16 10:57:20,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-10-16 10:57:20,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:57:20,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 10:57:20,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:57:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 45 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:57:21,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:57:21,955 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 45 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:57:21,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:57:21,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402556477] [2022-10-16 10:57:21,956 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:57:21,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549367926] [2022-10-16 10:57:21,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549367926] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:57:21,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:57:21,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 36 [2022-10-16 10:57:21,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944726929] [2022-10-16 10:57:21,957 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:57:21,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:57:21,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:57:21,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:57:21,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:57:21,960 INFO L87 Difference]: Start difference. First operand 540 states and 627 transitions. Second operand has 36 states, 36 states have (on average 3.1666666666666665) internal successors, (114), 36 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:22,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:57:22,967 INFO L93 Difference]: Finished difference Result 756 states and 894 transitions. [2022-10-16 10:57:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 10:57:22,968 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.1666666666666665) internal successors, (114), 36 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 10:57:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:57:22,970 INFO L225 Difference]: With dead ends: 756 [2022-10-16 10:57:22,970 INFO L226 Difference]: Without dead ends: 547 [2022-10-16 10:57:22,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 108 SyntacticMatches, 12 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=486, Invalid=2594, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 10:57:22,971 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 223 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:57:22,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 459 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:57:22,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-10-16 10:57:23,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 489. [2022-10-16 10:57:23,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 482 states have (on average 1.1721991701244814) internal successors, (565), 488 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:23,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 565 transitions. [2022-10-16 10:57:23,024 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 565 transitions. Word has length 78 [2022-10-16 10:57:23,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:57:23,024 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 565 transitions. [2022-10-16 10:57:23,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.1666666666666665) internal successors, (114), 36 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:23,025 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 565 transitions. [2022-10-16 10:57:23,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 10:57:23,026 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:57:23,026 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:57:23,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-10-16 10:57:23,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:57:23,239 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:57:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:57:23,240 INFO L85 PathProgramCache]: Analyzing trace with hash 744540091, now seen corresponding path program 12 times [2022-10-16 10:57:23,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:57:23,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283841383] [2022-10-16 10:57:23,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:57:23,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:57:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:57:25,154 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:57:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:57:25,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283841383] [2022-10-16 10:57:25,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283841383] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:57:25,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158089190] [2022-10-16 10:57:25,155 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:57:25,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:57:25,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:57:25,161 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:57:25,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-10-16 10:57:25,481 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-10-16 10:57:25,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:57:25,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 73 conjunts are in the unsatisfiable core [2022-10-16 10:57:25,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:57:25,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:57:25,627 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:25,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:25,714 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:25,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:25,846 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:25,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:25,982 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:25,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:26,128 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:26,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:26,273 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:26,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:57:26,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:57:26,661 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 16 treesize of output 14 [2022-10-16 10:57:26,663 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 20 treesize of output 16 [2022-10-16 10:57:26,757 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:57:26,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158089190] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:57:26,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:57:26,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 30] total 44 [2022-10-16 10:57:26,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145235746] [2022-10-16 10:57:26,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:57:26,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-16 10:57:26,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:57:26,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-16 10:57:26,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1769, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 10:57:26,760 INFO L87 Difference]: Start difference. First operand 489 states and 565 transitions. Second operand has 44 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:29,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:57:29,253 INFO L93 Difference]: Finished difference Result 724 states and 867 transitions. [2022-10-16 10:57:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 10:57:29,254 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-16 10:57:29,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:57:29,256 INFO L225 Difference]: With dead ends: 724 [2022-10-16 10:57:29,256 INFO L226 Difference]: Without dead ends: 525 [2022-10-16 10:57:29,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 148 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=237, Invalid=3669, Unknown=0, NotChecked=0, Total=3906 [2022-10-16 10:57:29,257 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 121 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 3176 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 3218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:57:29,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1232 Invalid, 3218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3176 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 10:57:29,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-10-16 10:57:29,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 503. [2022-10-16 10:57:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 496 states have (on average 1.1713709677419355) internal successors, (581), 502 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 581 transitions. [2022-10-16 10:57:29,309 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 581 transitions. Word has length 80 [2022-10-16 10:57:29,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:57:29,309 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 581 transitions. [2022-10-16 10:57:29,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 581 transitions. [2022-10-16 10:57:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 10:57:29,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:57:29,311 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:57:29,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-10-16 10:57:29,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:57:29,525 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:57:29,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:57:29,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1987594419, now seen corresponding path program 12 times [2022-10-16 10:57:29,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:57:29,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284721145] [2022-10-16 10:57:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:57:29,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:57:29,545 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:57:29,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864553839] [2022-10-16 10:57:29,545 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:57:29,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:57:29,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:57:29,546 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:57:29,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-10-16 10:57:29,759 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-10-16 10:57:29,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:57:29,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 10:57:29,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:57:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 50 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:57:30,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:57:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 50 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:57:30,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:57:30,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284721145] [2022-10-16 10:57:30,680 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:57:30,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864553839] [2022-10-16 10:57:30,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864553839] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:57:30,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:57:30,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 30 [2022-10-16 10:57:30,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492365775] [2022-10-16 10:57:30,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:57:30,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 10:57:30,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:57:30,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 10:57:30,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2022-10-16 10:57:30,683 INFO L87 Difference]: Start difference. First operand 503 states and 581 transitions. Second operand has 30 states, 30 states have (on average 3.4) internal successors, (102), 30 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:57:31,313 INFO L93 Difference]: Finished difference Result 540 states and 622 transitions. [2022-10-16 10:57:31,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:57:31,315 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.4) internal successors, (102), 30 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-10-16 10:57:31,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:57:31,318 INFO L225 Difference]: With dead ends: 540 [2022-10-16 10:57:31,318 INFO L226 Difference]: Without dead ends: 451 [2022-10-16 10:57:31,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 128 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=305, Invalid=1501, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 10:57:31,325 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 85 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:57:31,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 268 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:57:31,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-10-16 10:57:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 449. [2022-10-16 10:57:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 442 states have (on average 1.1877828054298643) internal successors, (525), 448 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 525 transitions. [2022-10-16 10:57:31,398 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 525 transitions. Word has length 84 [2022-10-16 10:57:31,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:57:31,398 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 525 transitions. [2022-10-16 10:57:31,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.4) internal successors, (102), 30 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 525 transitions. [2022-10-16 10:57:31,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 10:57:31,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:57:31,403 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:57:31,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-10-16 10:57:31,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-10-16 10:57:31,604 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:57:31,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:57:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash 757864824, now seen corresponding path program 13 times [2022-10-16 10:57:31,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:57:31,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226492376] [2022-10-16 10:57:31,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:57:31,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:57:31,627 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:57:31,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128442936] [2022-10-16 10:57:31,627 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:57:31,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:57:31,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:57:31,628 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:57:31,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-10-16 10:57:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:57:31,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 10:57:31,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:57:31,785 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 10:57:31,917 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 37 treesize of output 17 [2022-10-16 10:57:32,025 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:32,025 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:32,122 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:32,122 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:32,229 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:32,230 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:32,344 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:57:32,344 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:57:32,444 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 16 treesize of output 18 [2022-10-16 10:57:32,533 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 19 treesize of output 7 [2022-10-16 10:57:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 39 proven. 74 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 10:57:32,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:57:32,651 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6)) is different from false [2022-10-16 10:57:32,666 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:57:32,687 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:57:32,725 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_344|)) (forall ((v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6)))) is different from false [2022-10-16 10:57:32,758 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6))) is different from false [2022-10-16 10:57:32,778 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:57:32,897 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_345|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))))) is different from false [2022-10-16 10:57:32,960 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) is different from false [2022-10-16 10:57:32,995 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))) is different from false [2022-10-16 10:57:33,109 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_346| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_346|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))))) is different from false [2022-10-16 10:57:33,174 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) is different from false [2022-10-16 10:57:33,213 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) is different from false [2022-10-16 10:57:33,366 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_347| Int)) (or (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_347|)))) is different from false [2022-10-16 10:57:33,460 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6) (< |v_ULTIMATE.start_main_~i~0#1_347| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) is different from false [2022-10-16 10:57:33,506 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_347| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ 5 |c_ULTIMATE.start_main_#t~mem9#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6))) is different from false [2022-10-16 10:57:33,799 INFO L356 Elim1Store]: treesize reduction 364, result has 14.8 percent of original size [2022-10-16 10:57:33,800 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 2 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 79 [2022-10-16 10:57:33,808 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:57:33,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 38 treesize of output 34 [2022-10-16 10:57:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 111 not checked. [2022-10-16 10:57:33,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:57:33,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226492376] [2022-10-16 10:57:33,886 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:57:33,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128442936] [2022-10-16 10:57:33,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128442936] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:57:33,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:57:33,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 42 [2022-10-16 10:57:33,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988479773] [2022-10-16 10:57:33,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:57:33,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 10:57:33,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:57:33,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 10:57:33,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=611, Unknown=15, NotChecked=960, Total=1722 [2022-10-16 10:57:33,888 INFO L87 Difference]: Start difference. First operand 449 states and 525 transitions. Second operand has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:57:35,171 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 6 (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6) (< |v_ULTIMATE.start_main_~i~0#1_347| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:57:37,178 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_347| Int)) (or (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_347|)))) (<= 1 |c_ULTIMATE.start_main_#t~post7#1|))) is different from false [2022-10-16 10:57:39,188 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))))) is different from false [2022-10-16 10:57:40,553 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))))) is different from false [2022-10-16 10:57:42,560 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_#t~post7#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_346| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_346|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))))))) is different from false [2022-10-16 10:57:44,516 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_347| .cse2) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (store .cse0 .cse3 (+ 5 |c_ULTIMATE.start_main_#t~mem9#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6))) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| .cse2) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 .cse3 v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))))) is different from false [2022-10-16 10:57:46,526 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| .cse0) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)))) (= (select .cse1 .cse2) 6) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 6) (< |v_ULTIMATE.start_main_~i~0#1_347| .cse0) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))))) is different from false [2022-10-16 10:57:48,533 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_#t~post7#1| 1))) (and (<= 3 |c_ULTIMATE.start_main_#t~post7#1|) (= (select .cse0 .cse1) 6) (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_345|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_347| Int)) (or (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_347|)))))) is different from false [2022-10-16 10:57:50,548 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_346| .cse2) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 .cse3 v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 .cse3 v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6) (< |v_ULTIMATE.start_main_~i~0#1_344| .cse2))) (<= 4 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:57:52,562 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_346| .cse2) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| .cse2) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6))) (<= 4 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:57:54,569 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_#t~post7#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (<= 4 |c_ULTIMATE.start_main_#t~post7#1|) (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_346| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_346|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_344|)) (forall ((v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6)))))) is different from false [2022-10-16 10:57:56,677 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 .cse2 v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (<= 5 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_347| .cse3) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (store .cse0 .cse2 (+ 5 |c_ULTIMATE.start_main_#t~mem9#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6))) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| .cse3) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 .cse2 v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))))) is different from false [2022-10-16 10:57:58,714 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| .cse0) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)))) (= (select .cse1 .cse2) 6) (forall ((v_ArrVal_1842 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 6) (< |v_ULTIMATE.start_main_~i~0#1_347| .cse0) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (<= 4 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:58:00,736 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_#t~post7#1| 1))) (and (<= 4 |c_ULTIMATE.start_main_#t~post7#1|) (= (select .cse0 .cse1) 6) (forall ((v_ArrVal_1842 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_345|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_347| Int)) (or (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_347|)))))) is different from false [2022-10-16 10:58:02,793 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (= (select .cse0 .cse1) 6) (forall ((v_ArrVal_1842 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 5 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_346| .cse2) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 .cse3 v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 .cse3 v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6) (< |v_ULTIMATE.start_main_~i~0#1_344| .cse2))))) is different from false [2022-10-16 10:58:04,783 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (= (select .cse0 .cse1) 6) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 5 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_346| .cse2) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 .cse3 v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 .cse3 v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6) (< |v_ULTIMATE.start_main_~i~0#1_344| .cse2))))) is different from false [2022-10-16 10:58:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:58:04,935 INFO L93 Difference]: Finished difference Result 754 states and 924 transitions. [2022-10-16 10:58:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 10:58:04,936 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-10-16 10:58:04,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:58:04,939 INFO L225 Difference]: With dead ends: 754 [2022-10-16 10:58:04,939 INFO L226 Difference]: Without dead ends: 685 [2022-10-16 10:58:04,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 131 SyntacticMatches, 9 SemanticMatches, 60 ConstructedPredicates, 31 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=205, Invalid=818, Unknown=31, NotChecked=2728, Total=3782 [2022-10-16 10:58:04,940 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 127 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1136 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:58:04,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 315 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 465 Invalid, 0 Unknown, 1136 Unchecked, 0.3s Time] [2022-10-16 10:58:04,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2022-10-16 10:58:04,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 529. [2022-10-16 10:58:04,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 522 states have (on average 1.2011494252873562) internal successors, (627), 528 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:58:04,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 627 transitions. [2022-10-16 10:58:04,994 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 627 transitions. Word has length 85 [2022-10-16 10:58:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:58:04,995 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 627 transitions. [2022-10-16 10:58:04,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:58:04,995 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 627 transitions. [2022-10-16 10:58:04,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 10:58:04,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:58:04,996 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:58:05,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-10-16 10:58:05,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-10-16 10:58:05,210 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:58:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:58:05,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1453671805, now seen corresponding path program 13 times [2022-10-16 10:58:05,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:58:05,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706864939] [2022-10-16 10:58:05,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:58:05,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:58:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:58:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 118 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:58:06,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:58:06,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706864939] [2022-10-16 10:58:06,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706864939] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:58:06,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642725794] [2022-10-16 10:58:06,417 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:58:06,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:58:06,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:58:06,418 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:58:06,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-10-16 10:58:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:58:06,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:58:06,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:58:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 161 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:58:07,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:58:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 161 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:58:09,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642725794] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:58:09,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:58:09,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 52 [2022-10-16 10:58:09,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634381051] [2022-10-16 10:58:09,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:58:09,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 10:58:09,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:58:09,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 10:58:09,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=2295, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 10:58:09,028 INFO L87 Difference]: Start difference. First operand 529 states and 627 transitions. Second operand has 52 states, 52 states have (on average 2.9038461538461537) internal successors, (151), 52 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:58:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:58:12,680 INFO L93 Difference]: Finished difference Result 806 states and 957 transitions. [2022-10-16 10:58:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-10-16 10:58:12,682 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.9038461538461537) internal successors, (151), 52 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-10-16 10:58:12,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:58:12,685 INFO L225 Difference]: With dead ends: 806 [2022-10-16 10:58:12,685 INFO L226 Difference]: Without dead ends: 655 [2022-10-16 10:58:12,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 126 SyntacticMatches, 29 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4281 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1715, Invalid=9627, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:58:12,687 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 391 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:58:12,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 533 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 10:58:12,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-10-16 10:58:12,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 573. [2022-10-16 10:58:12,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 566 states have (on average 1.187279151943463) internal successors, (672), 572 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:58:12,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 672 transitions. [2022-10-16 10:58:12,741 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 672 transitions. Word has length 87 [2022-10-16 10:58:12,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:58:12,742 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 672 transitions. [2022-10-16 10:58:12,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.9038461538461537) internal successors, (151), 52 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:58:12,742 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 672 transitions. [2022-10-16 10:58:12,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 10:58:12,743 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:58:12,744 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:58:12,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2022-10-16 10:58:12,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-10-16 10:58:12,958 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:58:12,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:58:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1339241884, now seen corresponding path program 14 times [2022-10-16 10:58:12,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:58:12,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464253870] [2022-10-16 10:58:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:58:12,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:58:12,979 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:58:12,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680803388] [2022-10-16 10:58:12,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:58:12,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:58:12,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:58:12,981 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:58:12,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-10-16 10:58:13,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:58:13,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:58:13,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 54 conjunts are in the unsatisfiable core [2022-10-16 10:58:13,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:58:13,140 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 10:58:13,370 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 37 treesize of output 17 [2022-10-16 10:58:13,499 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:58:13,500 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:58:13,614 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 16 treesize of output 18 [2022-10-16 10:58:13,710 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 16 treesize of output 18 [2022-10-16 10:58:13,812 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 16 treesize of output 18 [2022-10-16 10:58:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 10:58:13,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:58:14,046 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 6)) is different from false [2022-10-16 10:58:14,061 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:58:14,085 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= 6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:58:14,106 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:58:14,116 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:58:14,133 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) 6)) is different from false [2022-10-16 10:58:14,152 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:58:14,186 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_378|)) (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) is different from false [2022-10-16 10:58:14,218 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_378| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))))) is different from false [2022-10-16 10:58:32,551 INFO L356 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-10-16 10:58:32,552 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 43 [2022-10-16 10:58:32,562 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:58:32,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 38 treesize of output 34 [2022-10-16 10:58:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 31 refuted. 2 times theorem prover too weak. 45 trivial. 69 not checked. [2022-10-16 10:58:32,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:58:32,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464253870] [2022-10-16 10:58:32,685 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:58:32,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680803388] [2022-10-16 10:58:32,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680803388] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:58:32,686 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:58:32,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 40 [2022-10-16 10:58:32,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878660093] [2022-10-16 10:58:32,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:58:32,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:58:32,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:58:32,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:58:32,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=817, Unknown=25, NotChecked=594, Total=1560 [2022-10-16 10:58:32,688 INFO L87 Difference]: Start difference. First operand 573 states and 672 transitions. Second operand has 40 states, 40 states have (on average 2.775) internal successors, (111), 40 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:58:35,099 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 6 (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= 3 |c_ULTIMATE.start_main_~i~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_378| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) is different from false [2022-10-16 10:58:37,103 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (<= 3 |c_ULTIMATE.start_main_#t~post7#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_378|)) (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 6 (select .cse0 .cse1)))) is different from false [2022-10-16 10:58:37,918 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 6 (select .cse0 .cse1)) (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6)) (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_378| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)))))) is different from false [2022-10-16 10:58:39,923 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_378|)) (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 6 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 6 (select .cse0 .cse1)) (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 6)))) is different from false