/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-crafted/zero_sum_const_m3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:03:34,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:03:34,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:03:35,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:03:35,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:03:35,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:03:35,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:03:35,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:03:35,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:03:35,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:03:35,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:03:35,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:03:35,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:03:35,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:03:35,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:03:35,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:03:35,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:03:35,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:03:35,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:03:35,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:03:35,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:03:35,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:03:35,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:03:35,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:03:35,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:03:35,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:03:35,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:03:35,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:03:35,090 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 10:03:35,118 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:03:35,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:03:35,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:03:35,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:03:35,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:03:35,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:03:35,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:03:35,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:03:35,121 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:03:35,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:03:35,122 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:03:35,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:03:35,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:03:35,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:03:35,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:03:35,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:03:35,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:03:35,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:03:35,124 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:03:35,124 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:03:35,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:03:35,124 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:03:35,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:03:35,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:03:35,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:03:35,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:03:35,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:03:35,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:03:35,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:03:35,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:03:35,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:03:35,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:03:35,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:03:35,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:03:35,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:03:35,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:03:35,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:03:35,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:03:35,576 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:03:35,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/zero_sum_const_m3.c [2022-10-16 10:03:35,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddcda3228/55824e1d2e3948bf825bd1fd74ab710e/FLAG4358c5c9d [2022-10-16 10:03:36,289 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:03:36,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const_m3.c [2022-10-16 10:03:36,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddcda3228/55824e1d2e3948bf825bd1fd74ab710e/FLAG4358c5c9d [2022-10-16 10:03:36,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddcda3228/55824e1d2e3948bf825bd1fd74ab710e [2022-10-16 10:03:36,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:03:36,670 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:03:36,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:03:36,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:03:36,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:03:36,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:36,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38167abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36, skipping insertion in model container [2022-10-16 10:03:36,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:36,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:03:36,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:03:36,866 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-crafted/zero_sum_const_m3.c[408,421] [2022-10-16 10:03:36,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:03:36,933 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:03:36,950 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-crafted/zero_sum_const_m3.c[408,421] [2022-10-16 10:03:36,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:03:36,990 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:03:36,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36 WrapperNode [2022-10-16 10:03:36,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:03:36,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:03:36,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:03:36,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:03:37,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,038 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 130 [2022-10-16 10:03:37,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:03:37,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:03:37,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:03:37,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:03:37,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:03:37,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:03:37,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:03:37,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:03:37,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (1/1) ... [2022-10-16 10:03:37,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:03:37,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:37,117 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 10:03:37,134 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 10:03:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:03:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:03:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:03:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:03:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:03:37,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:03:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:03:37,305 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:03:37,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:03:37,707 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:03:37,720 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:03:37,721 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-10-16 10:03:37,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:03:37 BoogieIcfgContainer [2022-10-16 10:03:37,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:03:37,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:03:37,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:03:37,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:03:37,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:03:36" (1/3) ... [2022-10-16 10:03:37,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71644e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:03:37, skipping insertion in model container [2022-10-16 10:03:37,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:36" (2/3) ... [2022-10-16 10:03:37,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71644e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:03:37, skipping insertion in model container [2022-10-16 10:03:37,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:03:37" (3/3) ... [2022-10-16 10:03:37,767 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum_const_m3.c [2022-10-16 10:03:37,818 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:03:37,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 10:03:37,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:03:37,949 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;@3ef8ee5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:03:37,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 10:03:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 56 states have (on average 1.75) internal successors, (98), 82 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:37,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 10:03:37,967 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:37,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 10:03:37,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:37,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash 889512652, now seen corresponding path program 1 times [2022-10-16 10:03:37,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:37,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37282191] [2022-10-16 10:03:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:37,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:38,404 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 10:03:38,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:38,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37282191] [2022-10-16 10:03:38,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37282191] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:38,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:03:38,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:03:38,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943255914] [2022-10-16 10:03:38,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:38,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:03:38,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:38,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:03:38,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:03:38,469 INFO L87 Difference]: Start difference. First operand has 83 states, 56 states have (on average 1.75) internal successors, (98), 82 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:38,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:38,787 INFO L93 Difference]: Finished difference Result 237 states and 278 transitions. [2022-10-16 10:03:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:03:38,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 10:03:38,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:38,807 INFO L225 Difference]: With dead ends: 237 [2022-10-16 10:03:38,808 INFO L226 Difference]: Without dead ends: 145 [2022-10-16 10:03:38,812 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 10:03:38,819 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 71 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:38,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 191 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:03:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-10-16 10:03:38,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 79. [2022-10-16 10:03:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.6226415094339623) internal successors, (86), 78 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 10:03:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2022-10-16 10:03:38,898 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 6 [2022-10-16 10:03:38,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:38,898 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2022-10-16 10:03:38,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2022-10-16 10:03:38,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:03:38,900 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:38,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:38,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:03:38,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:38,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:38,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1805037039, now seen corresponding path program 1 times [2022-10-16 10:03:38,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:38,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736085137] [2022-10-16 10:03:38,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:38,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:39,059 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 10:03:39,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:39,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736085137] [2022-10-16 10:03:39,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736085137] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:39,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:03:39,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:03:39,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773843802] [2022-10-16 10:03:39,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:39,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:03:39,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:39,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:03:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:03:39,073 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:39,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:39,164 INFO L93 Difference]: Finished difference Result 145 states and 157 transitions. [2022-10-16 10:03:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:03:39,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:03:39,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:39,167 INFO L225 Difference]: With dead ends: 145 [2022-10-16 10:03:39,168 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 10:03:39,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:03:39,176 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 3 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:39,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 124 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:03:39,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 10:03:39,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-10-16 10:03:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.6037735849056605) internal successors, (85), 78 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:39,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2022-10-16 10:03:39,192 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 7 [2022-10-16 10:03:39,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:39,194 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2022-10-16 10:03:39,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:39,194 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2022-10-16 10:03:39,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:03:39,195 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:39,195 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:39,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:03:39,196 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:39,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:39,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1894413816, now seen corresponding path program 1 times [2022-10-16 10:03:39,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:39,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019959568] [2022-10-16 10:03:39,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:39,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:39,414 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 10:03:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:39,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019959568] [2022-10-16 10:03:39,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019959568] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:39,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938291693] [2022-10-16 10:03:39,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:39,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:39,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:39,424 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 10:03:39,443 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 10:03:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:39,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:03:39,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:39,598 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 10:03:39,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:03:39,666 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 10:03:39,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938291693] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:03:39,666 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:03:39,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:03:39,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897383851] [2022-10-16 10:03:39,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:03:39,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:03:39,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:39,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:03:39,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:03:39,675 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 10:03:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:39,948 INFO L93 Difference]: Finished difference Result 163 states and 179 transitions. [2022-10-16 10:03:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:03:39,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 10 [2022-10-16 10:03:39,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:39,957 INFO L225 Difference]: With dead ends: 163 [2022-10-16 10:03:39,957 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 10:03:39,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 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 10:03:39,963 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 143 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:39,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 371 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:03:39,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 10:03:39,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 90. [2022-10-16 10:03:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.578125) internal successors, (101), 89 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2022-10-16 10:03:39,989 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 10 [2022-10-16 10:03:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:39,992 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2022-10-16 10:03:39,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 10:03:39,992 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2022-10-16 10:03:39,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:03:39,993 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:39,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:40,034 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 10:03:40,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:40,210 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:40,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1402662451, now seen corresponding path program 1 times [2022-10-16 10:03:40,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:40,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686914732] [2022-10-16 10:03:40,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:40,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:40,310 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 10:03:40,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:40,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686914732] [2022-10-16 10:03:40,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686914732] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:40,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251532716] [2022-10-16 10:03:40,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:40,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:40,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:40,316 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 10:03:40,323 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 10:03:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:40,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:03:40,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:40,475 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 10:03:40,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:03:40,516 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 10:03:40,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251532716] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:03:40,517 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:03:40,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:03:40,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442795741] [2022-10-16 10:03:40,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:03:40,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:03:40,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:40,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:03:40,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:03:40,520 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:40,714 INFO L93 Difference]: Finished difference Result 157 states and 172 transitions. [2022-10-16 10:03:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:03:40,715 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:03:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:40,716 INFO L225 Difference]: With dead ends: 157 [2022-10-16 10:03:40,716 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 10:03:40,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:03:40,718 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 64 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:40,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 413 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:03:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 10:03:40,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2022-10-16 10:03:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.5625) internal successors, (100), 89 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:40,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 100 transitions. [2022-10-16 10:03:40,725 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 100 transitions. Word has length 11 [2022-10-16 10:03:40,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:40,726 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 100 transitions. [2022-10-16 10:03:40,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2022-10-16 10:03:40,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:03:40,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:40,727 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:03:40,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 10:03:40,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:03:40,942 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:40,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:40,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1402713897, now seen corresponding path program 1 times [2022-10-16 10:03:40,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:40,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357925863] [2022-10-16 10:03:40,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:40,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:41,081 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 10:03:41,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:41,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357925863] [2022-10-16 10:03:41,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357925863] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:41,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777732083] [2022-10-16 10:03:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:41,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:41,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:41,090 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 10:03:41,111 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 10:03:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:41,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:03:41,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:41,175 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 10:03:41,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:03:41,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777732083] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:41,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:03:41,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:03:41,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544326339] [2022-10-16 10:03:41,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:41,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:03:41,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:03:41,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:03:41,178 INFO L87 Difference]: Start difference. First operand 90 states and 100 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:41,290 INFO L93 Difference]: Finished difference Result 155 states and 170 transitions. [2022-10-16 10:03:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:03:41,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:03:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:41,292 INFO L225 Difference]: With dead ends: 155 [2022-10-16 10:03:41,292 INFO L226 Difference]: Without dead ends: 154 [2022-10-16 10:03:41,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 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 10:03:41,293 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 66 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:41,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 255 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:03:41,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-10-16 10:03:41,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 89. [2022-10-16 10:03:41,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 64 states have (on average 1.515625) internal successors, (97), 88 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 10:03:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2022-10-16 10:03:41,301 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 11 [2022-10-16 10:03:41,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:41,302 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2022-10-16 10:03:41,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2022-10-16 10:03:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:03:41,303 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:41,303 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:41,340 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 10:03:41,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:41,517 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:41,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:41,518 INFO L85 PathProgramCache]: Analyzing trace with hash 591228023, now seen corresponding path program 2 times [2022-10-16 10:03:41,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:41,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621193416] [2022-10-16 10:03:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:41,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:03:41,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:41,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621193416] [2022-10-16 10:03:41,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621193416] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:41,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053765410] [2022-10-16 10:03:41,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:03:41,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:41,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:41,918 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 10:03:41,942 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 10:03:41,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:03:41,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:03:41,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:03:41,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:42,068 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 10:03:42,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:03:42,185 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 23 treesize of output 22 [2022-10-16 10:03:42,264 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 10:03:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:03:42,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:03:44,460 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_54 Int)) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775808)))) is different from false [2022-10-16 10:03:48,258 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 23 treesize of output 21 [2022-10-16 10:03:48,266 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 64 treesize of output 62 [2022-10-16 10:03:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 10:03:48,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053765410] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:03:48,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:03:48,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 21 [2022-10-16 10:03:48,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862039445] [2022-10-16 10:03:48,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:03:48,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:03:48,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:48,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:03:48,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=336, Unknown=5, NotChecked=38, Total=462 [2022-10-16 10:03:48,331 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:50,355 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_#t~post6#1| 0) (= (select .cse0 0) 1) (= (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_54 Int)) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775808)))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:03:52,363 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_#t~post6#1| 0) (= (select .cse0 0) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_54 Int)) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775808)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:03:53,027 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (< |c_ULTIMATE.start_main_~sum~0#1| 9223372036854775807) (= .cse0 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_54 Int)) (or (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~0#1_45| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 (+ .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808))) is different from false [2022-10-16 10:03:53,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:53,282 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2022-10-16 10:03:53,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:03:53,283 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:03:53,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:53,284 INFO L225 Difference]: With dead ends: 126 [2022-10-16 10:03:53,284 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 10:03:53,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=141, Invalid=517, Unknown=8, NotChecked=204, Total=870 [2022-10-16 10:03:53,286 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 193 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 164 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:53,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 290 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 442 Invalid, 0 Unknown, 164 Unchecked, 0.3s Time] [2022-10-16 10:03:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 10:03:53,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 92. [2022-10-16 10:03:53,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.507462686567164) internal successors, (101), 91 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2022-10-16 10:03:53,294 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 15 [2022-10-16 10:03:53,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:53,294 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2022-10-16 10:03:53,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:53,294 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2022-10-16 10:03:53,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:03:53,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:53,295 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:53,337 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 10:03:53,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:53,496 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:53,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:53,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1234401639, now seen corresponding path program 1 times [2022-10-16 10:03:53,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:53,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338125513] [2022-10-16 10:03:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:53,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:03:53,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:53,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338125513] [2022-10-16 10:03:53,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338125513] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:53,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:03:53,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:03:53,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530976729] [2022-10-16 10:03:53,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:53,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:03:53,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:53,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:03:53,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:03:53,570 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 10:03:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:53,628 INFO L93 Difference]: Finished difference Result 202 states and 219 transitions. [2022-10-16 10:03:53,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:03:53,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 17 [2022-10-16 10:03:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:53,630 INFO L225 Difference]: With dead ends: 202 [2022-10-16 10:03:53,630 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 10:03:53,630 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 10:03:53,631 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 128 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:53,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 104 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:03:53,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 10:03:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 96. [2022-10-16 10:03:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 95 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2022-10-16 10:03:53,638 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 17 [2022-10-16 10:03:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:53,639 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2022-10-16 10:03:53,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 10:03:53,639 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2022-10-16 10:03:53,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:03:53,640 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:53,640 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:53,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 10:03:53,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:53,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:53,641 INFO L85 PathProgramCache]: Analyzing trace with hash -386783092, now seen corresponding path program 1 times [2022-10-16 10:03:53,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:53,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920107315] [2022-10-16 10:03:53,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:53,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:53,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:03:53,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:53,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920107315] [2022-10-16 10:03:53,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920107315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:53,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:03:53,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:03:53,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523077325] [2022-10-16 10:03:53,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:53,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:03:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:53,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:03:53,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:03:53,687 INFO L87 Difference]: Start difference. First operand 96 states and 104 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 10:03:53,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:53,745 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2022-10-16 10:03:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:03:53,746 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 18 [2022-10-16 10:03:53,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:53,747 INFO L225 Difference]: With dead ends: 147 [2022-10-16 10:03:53,747 INFO L226 Difference]: Without dead ends: 145 [2022-10-16 10:03:53,747 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 10:03:53,748 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 51 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:53,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 170 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:03:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-10-16 10:03:53,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 99. [2022-10-16 10:03:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 74 states have (on average 1.445945945945946) internal successors, (107), 98 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2022-10-16 10:03:53,755 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 18 [2022-10-16 10:03:53,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:53,755 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2022-10-16 10:03:53,756 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 10:03:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2022-10-16 10:03:53,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:03:53,756 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:53,757 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:53,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:03:53,757 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:53,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:53,758 INFO L85 PathProgramCache]: Analyzing trace with hash 742231581, now seen corresponding path program 1 times [2022-10-16 10:03:53,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:53,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036263629] [2022-10-16 10:03:53,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:53,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:54,391 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 10:03:54,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:54,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036263629] [2022-10-16 10:03:54,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036263629] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:54,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389933724] [2022-10-16 10:03:54,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:54,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:54,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:54,399 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 10:03:54,418 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 10:03:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:54,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:03:54,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:54,485 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 10:03:54,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:03:54,580 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 21 treesize of output 20 [2022-10-16 10:03:54,864 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:03:54,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 29 treesize of output 13 [2022-10-16 10:03:54,888 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 10:03:54,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:03:55,428 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 46 treesize of output 42 [2022-10-16 10:03:55,440 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:03:55,440 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 696 treesize of output 648 [2022-10-16 10:03:55,640 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 10:03:55,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389933724] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:03:55,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:03:55,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 10:03:55,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91637564] [2022-10-16 10:03:55,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:03:55,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:03:55,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:55,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:03:55,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1071, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:03:55,644 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:56,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:56,615 INFO L93 Difference]: Finished difference Result 115 states and 124 transitions. [2022-10-16 10:03:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:03:56,616 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 10:03:56,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:56,617 INFO L225 Difference]: With dead ends: 115 [2022-10-16 10:03:56,617 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 10:03:56,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=324, Invalid=1656, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:03:56,620 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 107 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 169 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:56,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 610 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 940 Invalid, 0 Unknown, 169 Unchecked, 0.6s Time] [2022-10-16 10:03:56,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 10:03:56,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 101. [2022-10-16 10:03:56,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 76 states have (on average 1.4473684210526316) internal successors, (110), 100 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 10:03:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 110 transitions. [2022-10-16 10:03:56,628 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 110 transitions. Word has length 21 [2022-10-16 10:03:56,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:56,628 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 110 transitions. [2022-10-16 10:03:56,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:56,629 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2022-10-16 10:03:56,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:03:56,630 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:56,630 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:56,670 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 10:03:56,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:56,834 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:03:56,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:56,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1534342596, now seen corresponding path program 1 times [2022-10-16 10:03:56,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:56,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399405764] [2022-10-16 10:03:56,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:56,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:57,148 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:03:57,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:57,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399405764] [2022-10-16 10:03:57,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399405764] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:57,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521550754] [2022-10-16 10:03:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:57,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:57,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:57,152 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 10:03:57,178 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 10:03:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:57,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:03:57,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:57,239 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 10:03:57,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:03:57,338 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 21 treesize of output 20 [2022-10-16 10:03:57,638 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:03:57,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 29 treesize of output 13 [2022-10-16 10:03:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:03:57,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:03:58,072 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 47 treesize of output 43 [2022-10-16 10:03:58,081 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:03:58,082 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 728 treesize of output 680 [2022-10-16 10:03:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:03:58,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521550754] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:03:58,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:03:58,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 33 [2022-10-16 10:03:58,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317319877] [2022-10-16 10:03:58,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:03:58,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:03:58,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:58,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:03:58,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=972, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:03:58,495 INFO L87 Difference]: Start difference. First operand 101 states and 110 transitions. Second operand has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:00,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:00,085 INFO L93 Difference]: Finished difference Result 317 states and 343 transitions. [2022-10-16 10:04:00,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 10:04:00,086 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 states have internal predecessors, (62), 0 states have call successors, (0), 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 22 [2022-10-16 10:04:00,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:00,088 INFO L225 Difference]: With dead ends: 317 [2022-10-16 10:04:00,088 INFO L226 Difference]: Without dead ends: 316 [2022-10-16 10:04:00,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=494, Invalid=2812, Unknown=0, NotChecked=0, Total=3306 [2022-10-16 10:04:00,091 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 550 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 509 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:00,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 697 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 913 Invalid, 0 Unknown, 509 Unchecked, 0.7s Time] [2022-10-16 10:04:00,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-16 10:04:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 113. [2022-10-16 10:04:00,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 112 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 10:04:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2022-10-16 10:04:00,102 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 22 [2022-10-16 10:04:00,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:00,102 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2022-10-16 10:04:00,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2022-10-16 10:04:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:04:00,116 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:00,116 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 10:04:00,159 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 10:04:00,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:00,330 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:04:00,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:00,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1716489148, now seen corresponding path program 2 times [2022-10-16 10:04:00,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:00,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767016513] [2022-10-16 10:04:00,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:00,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:00,448 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 10:04:00,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:00,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767016513] [2022-10-16 10:04:00,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767016513] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:00,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9053280] [2022-10-16 10:04:00,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:04:00,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:00,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:00,450 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 10:04:00,453 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 10:04:00,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:04:00,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:00,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:04:00,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:00,542 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 10:04:00,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:00,581 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 10:04:00,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9053280] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:00,582 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:00,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:04:00,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910691793] [2022-10-16 10:04:00,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:00,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:04:00,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:00,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:04:00,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:04:00,584 INFO L87 Difference]: Start difference. First operand 113 states and 124 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 10:04:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:00,846 INFO L93 Difference]: Finished difference Result 166 states and 179 transitions. [2022-10-16 10:04:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:04:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 22 [2022-10-16 10:04:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:00,849 INFO L225 Difference]: With dead ends: 166 [2022-10-16 10:04:00,849 INFO L226 Difference]: Without dead ends: 165 [2022-10-16 10:04:00,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 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 10:04:00,851 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 323 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:00,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 210 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:00,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-10-16 10:04:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 112. [2022-10-16 10:04:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 111 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2022-10-16 10:04:00,866 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 22 [2022-10-16 10:04:00,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:00,869 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2022-10-16 10:04:00,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 10:04:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2022-10-16 10:04:00,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:04:00,871 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:00,871 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:00,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-16 10:04:01,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:01,087 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:04:01,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:01,088 INFO L85 PathProgramCache]: Analyzing trace with hash 319932813, now seen corresponding path program 1 times [2022-10-16 10:04:01,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:01,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889905129] [2022-10-16 10:04:01,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:01,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:01,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:01,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889905129] [2022-10-16 10:04:01,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889905129] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:01,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917425232] [2022-10-16 10:04:01,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:01,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:01,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:01,155 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 10:04:01,177 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 10:04:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:01,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:01,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:01,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:01,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917425232] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:01,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:01,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 10:04:01,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645724916] [2022-10-16 10:04:01,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:01,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:04:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:01,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:04:01,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:04:01,325 INFO L87 Difference]: Start difference. First operand 112 states and 123 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 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 10:04:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:01,487 INFO L93 Difference]: Finished difference Result 224 states and 239 transitions. [2022-10-16 10:04:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:04:01,488 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 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 23 [2022-10-16 10:04:01,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:01,489 INFO L225 Difference]: With dead ends: 224 [2022-10-16 10:04:01,489 INFO L226 Difference]: Without dead ends: 165 [2022-10-16 10:04:01,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:04:01,491 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 241 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:01,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 295 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-10-16 10:04:01,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 112. [2022-10-16 10:04:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 88 states have (on average 1.375) internal successors, (121), 111 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 10:04:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 121 transitions. [2022-10-16 10:04:01,501 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 121 transitions. Word has length 23 [2022-10-16 10:04:01,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:01,502 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 121 transitions. [2022-10-16 10:04:01,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 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 10:04:01,502 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 121 transitions. [2022-10-16 10:04:01,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:04:01,503 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:01,503 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:01,537 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 10:04:01,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 10:04:01,717 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:04:01,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:01,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1329454374, now seen corresponding path program 1 times [2022-10-16 10:04:01,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:01,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790509456] [2022-10-16 10:04:01,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:01,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:01,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:01,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790509456] [2022-10-16 10:04:01,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790509456] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:01,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050764374] [2022-10-16 10:04:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:01,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:01,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:01,793 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 10:04:01,813 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 10:04:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:01,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:01,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:01,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:01,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050764374] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:01,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:01,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:04:01,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835830693] [2022-10-16 10:04:01,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:01,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:04:01,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:01,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:04:01,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:04:01,918 INFO L87 Difference]: Start difference. First operand 112 states and 121 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) 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 10:04:02,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:02,093 INFO L93 Difference]: Finished difference Result 185 states and 198 transitions. [2022-10-16 10:04:02,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:04:02,094 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) 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 24 [2022-10-16 10:04:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:02,095 INFO L225 Difference]: With dead ends: 185 [2022-10-16 10:04:02,096 INFO L226 Difference]: Without dead ends: 184 [2022-10-16 10:04:02,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 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 10:04:02,097 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 128 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:02,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 337 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:02,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-10-16 10:04:02,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 127. [2022-10-16 10:04:02,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 103 states have (on average 1.4077669902912622) internal successors, (145), 126 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 145 transitions. [2022-10-16 10:04:02,109 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 145 transitions. Word has length 24 [2022-10-16 10:04:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:02,109 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 145 transitions. [2022-10-16 10:04:02,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) 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 10:04:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 145 transitions. [2022-10-16 10:04:02,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:04:02,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:02,111 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:02,146 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 10:04:02,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 10:04:02,326 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:04:02,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1736587295, now seen corresponding path program 1 times [2022-10-16 10:04:02,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:02,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942171291] [2022-10-16 10:04:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:02,410 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 10:04:02,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:02,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942171291] [2022-10-16 10:04:02,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942171291] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:02,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864355106] [2022-10-16 10:04:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:02,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:02,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:02,412 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 10:04:02,417 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 10:04:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:02,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:02,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:02,485 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:02,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:04:02,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864355106] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:02,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:04:02,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:04:02,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788295065] [2022-10-16 10:04:02,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:02,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:04:02,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:02,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:04:02,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:04:02,488 INFO L87 Difference]: Start difference. First operand 127 states and 145 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:02,600 INFO L93 Difference]: Finished difference Result 173 states and 191 transitions. [2022-10-16 10:04:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:04:02,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 10:04:02,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:02,602 INFO L225 Difference]: With dead ends: 173 [2022-10-16 10:04:02,602 INFO L226 Difference]: Without dead ends: 172 [2022-10-16 10:04:02,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 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 10:04:02,603 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 61 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:02,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 259 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:02,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-10-16 10:04:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 126. [2022-10-16 10:04:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 103 states have (on average 1.3786407766990292) internal successors, (142), 125 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 142 transitions. [2022-10-16 10:04:02,615 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 142 transitions. Word has length 25 [2022-10-16 10:04:02,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:02,615 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 142 transitions. [2022-10-16 10:04:02,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 142 transitions. [2022-10-16 10:04:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:04:02,616 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:02,616 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:02,653 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 10:04:02,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:04:02,831 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:04:02,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:02,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1881889603, now seen corresponding path program 2 times [2022-10-16 10:04:02,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:02,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819468255] [2022-10-16 10:04:02,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:02,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:02,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:02,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819468255] [2022-10-16 10:04:02,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819468255] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:02,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145260969] [2022-10-16 10:04:02,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:04:02,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:02,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:02,990 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 10:04:03,018 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 10:04:03,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:04:03,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:03,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:04:03,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:03,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:03,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145260969] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:03,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:03,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:04:03,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939873166] [2022-10-16 10:04:03,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:03,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:04:03,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:03,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:04:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:04:03,284 INFO L87 Difference]: Start difference. First operand 126 states and 142 transitions. Second operand has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:03,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:03,667 INFO L93 Difference]: Finished difference Result 369 states and 400 transitions. [2022-10-16 10:04:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:04:03,668 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 10:04:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:03,670 INFO L225 Difference]: With dead ends: 369 [2022-10-16 10:04:03,670 INFO L226 Difference]: Without dead ends: 291 [2022-10-16 10:04:03,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=713, Unknown=0, NotChecked=0, Total=870 [2022-10-16 10:04:03,672 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 469 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:03,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 731 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:04:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-10-16 10:04:03,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 140. [2022-10-16 10:04:03,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 117 states have (on average 1.3333333333333333) internal successors, (156), 139 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 10:04:03,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 156 transitions. [2022-10-16 10:04:03,686 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 156 transitions. Word has length 27 [2022-10-16 10:04:03,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:03,686 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 156 transitions. [2022-10-16 10:04:03,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:03,687 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 156 transitions. [2022-10-16 10:04:03,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:04:03,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:03,688 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 10:04:03,722 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 10:04:03,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:04:03,902 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:04:03,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:03,902 INFO L85 PathProgramCache]: Analyzing trace with hash 314631475, now seen corresponding path program 2 times [2022-10-16 10:04:03,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:03,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192779783] [2022-10-16 10:04:03,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:03,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:04,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:04,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192779783] [2022-10-16 10:04:04,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192779783] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:04,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483659071] [2022-10-16 10:04:04,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:04:04,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:04,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:04,758 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 10:04:04,779 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 10:04:04,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:04:04,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:04,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 10:04:04,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:04,853 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 10:04:04,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:04,969 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 21 treesize of output 20 [2022-10-16 10:04:05,497 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:05,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 35 treesize of output 15 [2022-10-16 10:04:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:05,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:06,204 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 48 treesize of output 44 [2022-10-16 10:04:06,217 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:06,217 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 1482 treesize of output 1386 [2022-10-16 10:04:06,945 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:06,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483659071] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:06,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:06,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 44 [2022-10-16 10:04:06,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622775945] [2022-10-16 10:04:06,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:06,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-10-16 10:04:06,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:06,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-10-16 10:04:06,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=1663, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:04:06,949 INFO L87 Difference]: Start difference. First operand 140 states and 156 transitions. Second operand has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:08,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:08,376 INFO L93 Difference]: Finished difference Result 165 states and 179 transitions. [2022-10-16 10:04:08,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:04:08,377 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 0 states have call successors, (0), 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 10:04:08,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:08,378 INFO L225 Difference]: With dead ends: 165 [2022-10-16 10:04:08,378 INFO L226 Difference]: Without dead ends: 164 [2022-10-16 10:04:08,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=605, Invalid=2935, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 10:04:08,381 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 223 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 198 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:08,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 560 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 983 Invalid, 0 Unknown, 198 Unchecked, 0.6s Time] [2022-10-16 10:04:08,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-16 10:04:08,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2022-10-16 10:04:08,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 120 states have (on average 1.325) internal successors, (159), 142 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:08,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 159 transitions. [2022-10-16 10:04:08,394 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 159 transitions. Word has length 29 [2022-10-16 10:04:08,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:08,394 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 159 transitions. [2022-10-16 10:04:08,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:08,395 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 159 transitions. [2022-10-16 10:04:08,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:04:08,395 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:08,396 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:08,433 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 10:04:08,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 10:04:08,610 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:04:08,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:08,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1163641220, now seen corresponding path program 1 times [2022-10-16 10:04:08,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:08,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144785613] [2022-10-16 10:04:08,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:08,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:09,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:09,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144785613] [2022-10-16 10:04:09,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144785613] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:09,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214500617] [2022-10-16 10:04:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:09,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:09,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:09,357 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 10:04:09,382 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 10:04:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:09,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 10:04:09,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:09,445 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 10:04:09,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:09,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:04:09,701 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 10:04:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:04:09,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:11,911 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_89| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_89|)) (forall ((v_ArrVal_201 Int)) (< 0 (+ (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_89| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_201) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) is different from false [2022-10-16 10:04:18,391 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 23 treesize of output 21 [2022-10-16 10:04:18,395 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 142 treesize of output 138 [2022-10-16 10:04:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2022-10-16 10:04:18,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214500617] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:18,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:18,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 32 [2022-10-16 10:04:18,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575603405] [2022-10-16 10:04:18,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:18,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 10:04:18,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:18,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 10:04:18,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=786, Unknown=11, NotChecked=60, Total=1056 [2022-10-16 10:04:18,453 INFO L87 Difference]: Start difference. First operand 143 states and 159 transitions. Second operand has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 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 10:04:20,481 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_#t~post6#1| 0) (= (select .cse0 0) 1) (= (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_89| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_89|)) (forall ((v_ArrVal_201 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_89| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_201) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:04:22,484 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_#t~post6#1| 0) (= (select .cse0 0) 1) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_89| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_89|)) (forall ((v_ArrVal_201 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_89| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_201) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:04:24,510 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= (select .cse0 0) 1) (= (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_89| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_89|)) (forall ((v_ArrVal_201 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_89| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_201) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (<= 1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (<= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:04:26,514 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= (select .cse0 0) 1) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_89| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_89|)) (forall ((v_ArrVal_201 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_89| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_201) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 1) (<= 1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:04:27,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:27,331 INFO L93 Difference]: Finished difference Result 209 states and 224 transitions. [2022-10-16 10:04:27,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:04:27,331 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 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 30 [2022-10-16 10:04:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:27,334 INFO L225 Difference]: With dead ends: 209 [2022-10-16 10:04:27,334 INFO L226 Difference]: Without dead ends: 207 [2022-10-16 10:04:27,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=316, Invalid=1329, Unknown=15, NotChecked=410, Total=2070 [2022-10-16 10:04:27,336 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 561 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 279 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:27,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 479 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 867 Invalid, 0 Unknown, 279 Unchecked, 0.6s Time] [2022-10-16 10:04:27,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-10-16 10:04:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 127. [2022-10-16 10:04:27,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 104 states have (on average 1.3557692307692308) internal successors, (141), 126 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 141 transitions. [2022-10-16 10:04:27,361 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 141 transitions. Word has length 30 [2022-10-16 10:04:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:27,361 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 141 transitions. [2022-10-16 10:04:27,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 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 10:04:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 141 transitions. [2022-10-16 10:04:27,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 10:04:27,362 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:27,362 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:27,400 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 10:04:27,576 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,SelfDestructingSolverStorable16 [2022-10-16 10:04:27,576 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:04:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:27,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1003433593, now seen corresponding path program 3 times [2022-10-16 10:04:27,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:27,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123420027] [2022-10-16 10:04:27,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:27,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:28,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:28,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123420027] [2022-10-16 10:04:28,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123420027] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:28,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015070365] [2022-10-16 10:04:28,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:04:28,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:28,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:28,721 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 10:04:28,746 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 10:04:28,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 10:04:28,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:28,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 38 conjunts are in the unsatisfiable core [2022-10-16 10:04:28,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:28,829 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 10:04:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:28,943 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 23 treesize of output 22 [2022-10-16 10:04:29,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:29,128 INFO L356 Elim1Store]: treesize reduction 30, result has 49.2 percent of original size [2022-10-16 10:04:29,128 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 3 case distinctions, treesize of input 32 treesize of output 46 [2022-10-16 10:04:30,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:30,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:04:30,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:30,376 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:30,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 21 [2022-10-16 10:04:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:30,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:25,190 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 91 treesize of output 85 [2022-10-16 10:05:25,236 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 10:05:25,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 474014 treesize of output 449438 [2022-10-16 10:05:37,615 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 805 DAG size of output: 805 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)