/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-patterns/array17_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:15:48,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:15:48,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:15:48,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:15:48,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:15:48,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:15:48,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:15:48,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:15:48,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:15:48,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:15:48,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:15:48,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:15:48,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:15:48,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:15:48,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:15:48,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:15:48,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:15:48,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:15:48,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:15:48,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:15:48,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:15:48,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:15:48,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:15:48,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:15:48,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:15:48,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:15:48,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:15:48,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:15:48,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:15:48,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:15:48,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:15:48,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:15:48,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:15:48,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:15:48,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:15:48,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:15:48,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:15:48,254 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:15:48,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:15:48,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:15:48,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:15:48,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:15:48,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:15:48,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:15:48,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:15:48,262 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:15:48,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:15:48,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:15:48,264 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:15:48,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:15:48,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:15:48,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:15:48,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:15:48,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:15:48,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:15:48,266 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:15:48,266 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:15:48,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:15:48,266 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:15:48,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:15:48,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:15:48,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:15:48,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:15:48,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:15:48,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:15:48,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:15:48,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:15:48,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:15:48,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:15:48,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:15:48,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:15:48,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:15:48,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:15:48,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:15:48,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:15:48,804 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:15:48,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array17_pattern.c [2022-10-16 11:15:48,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae5b0af9/df7a340222ff4e9eb9338d3286f6b6a1/FLAG5ad572593 [2022-10-16 11:15:49,431 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:15:49,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array17_pattern.c [2022-10-16 11:15:49,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae5b0af9/df7a340222ff4e9eb9338d3286f6b6a1/FLAG5ad572593 [2022-10-16 11:15:49,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae5b0af9/df7a340222ff4e9eb9338d3286f6b6a1 [2022-10-16 11:15:49,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:15:49,811 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:15:49,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:15:49,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:15:49,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:15:49,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:15:49" (1/1) ... [2022-10-16 11:15:49,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cd212a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:49, skipping insertion in model container [2022-10-16 11:15:49,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:15:49" (1/1) ... [2022-10-16 11:15:49,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:15:49,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:15:49,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array17_pattern.c[1441,1454] [2022-10-16 11:15:50,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:15:50,028 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:15:50,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array17_pattern.c[1441,1454] [2022-10-16 11:15:50,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:15:50,072 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:15:50,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50 WrapperNode [2022-10-16 11:15:50,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:15:50,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:15:50,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:15:50,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:15:50,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,119 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2022-10-16 11:15:50,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:15:50,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:15:50,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:15:50,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:15:50,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:15:50,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:15:50,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:15:50,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:15:50,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (1/1) ... [2022-10-16 11:15:50,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:15:50,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:50,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:15:50,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:15:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:15:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 11:15:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 11:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:15:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:15:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:15:50,329 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:15:50,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:15:50,903 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:15:50,911 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:15:50,912 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-16 11:15:50,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:15:50 BoogieIcfgContainer [2022-10-16 11:15:50,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:15:50,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:15:50,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:15:50,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:15:50,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:15:49" (1/3) ... [2022-10-16 11:15:50,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c57f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:15:50, skipping insertion in model container [2022-10-16 11:15:50,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:15:50" (2/3) ... [2022-10-16 11:15:50,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c57f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:15:50, skipping insertion in model container [2022-10-16 11:15:50,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:15:50" (3/3) ... [2022-10-16 11:15:50,924 INFO L112 eAbstractionObserver]: Analyzing ICFG array17_pattern.c [2022-10-16 11:15:50,946 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:15:50,946 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-10-16 11:15:51,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:15:51,019 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;@26c3dce2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:15:51,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-10-16 11:15:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 75 states have internal predecessors, (90), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:51,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:15:51,037 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:51,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:51,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:51,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:51,047 INFO L85 PathProgramCache]: Analyzing trace with hash 755364748, now seen corresponding path program 1 times [2022-10-16 11:15:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:51,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828360236] [2022-10-16 11:15:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:51,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:51,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:51,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828360236] [2022-10-16 11:15:51,212 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:15:51,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069000800] [2022-10-16 11:15:51,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:51,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:51,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:51,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:51,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:15:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:51,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-16 11:15:51,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:51,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:51,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069000800] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:51,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:51,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:15:51,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828698442] [2022-10-16 11:15:51,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:51,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 11:15:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:51,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 11:15:51,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:15:51,368 INFO L87 Difference]: Start difference. First operand has 80 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 75 states have internal predecessors, (90), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:51,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:51,400 INFO L93 Difference]: Finished difference Result 155 states and 191 transitions. [2022-10-16 11:15:51,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 11:15:51,403 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 11:15:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:51,413 INFO L225 Difference]: With dead ends: 155 [2022-10-16 11:15:51,414 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 11:15:51,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:15:51,422 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:51,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:51,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 11:15:51,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-10-16 11:15:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 66 states have internal predecessors, (73), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:51,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2022-10-16 11:15:51,476 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 12 [2022-10-16 11:15:51,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:51,476 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2022-10-16 11:15:51,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:51,477 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2022-10-16 11:15:51,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:15:51,479 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:51,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:51,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:51,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-16 11:15:51,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash -53981878, now seen corresponding path program 1 times [2022-10-16 11:15:51,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:51,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798148872] [2022-10-16 11:15:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:51,712 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:51,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [749500086] [2022-10-16 11:15:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:51,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:51,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:51,714 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:51,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:15:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:51,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:15:51,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:51,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:51,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:51,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798148872] [2022-10-16 11:15:51,836 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:51,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749500086] [2022-10-16 11:15:51,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749500086] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:51,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:51,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:15:51,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916428351] [2022-10-16 11:15:51,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:51,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:15:51,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:51,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:15:51,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:51,841 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:51,982 INFO L93 Difference]: Finished difference Result 217 states and 242 transitions. [2022-10-16 11:15:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:15:51,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 11:15:51,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:51,985 INFO L225 Difference]: With dead ends: 217 [2022-10-16 11:15:51,985 INFO L226 Difference]: Without dead ends: 150 [2022-10-16 11:15:51,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:15:51,988 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 94 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:51,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 236 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:15:51,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-10-16 11:15:52,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 75. [2022-10-16 11:15:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.5918367346938775) internal successors, (78), 70 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:52,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2022-10-16 11:15:52,005 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 12 [2022-10-16 11:15:52,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:52,006 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2022-10-16 11:15:52,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:52,006 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2022-10-16 11:15:52,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:15:52,007 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:52,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:52,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:52,222 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,SelfDestructingSolverStorable1 [2022-10-16 11:15:52,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:52,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:52,224 INFO L85 PathProgramCache]: Analyzing trace with hash -53980212, now seen corresponding path program 1 times [2022-10-16 11:15:52,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:52,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986696295] [2022-10-16 11:15:52,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:52,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:52,251 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:52,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452746675] [2022-10-16 11:15:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:52,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:52,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:52,253 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:52,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:15:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:52,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:15:52,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:52,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:52,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:52,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986696295] [2022-10-16 11:15:52,334 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:52,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452746675] [2022-10-16 11:15:52,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452746675] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:52,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:52,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:15:52,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034363316] [2022-10-16 11:15:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:52,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:15:52,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:52,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:15:52,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:52,339 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:52,422 INFO L93 Difference]: Finished difference Result 139 states and 156 transitions. [2022-10-16 11:15:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:15:52,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 11:15:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:52,429 INFO L225 Difference]: With dead ends: 139 [2022-10-16 11:15:52,429 INFO L226 Difference]: Without dead ends: 138 [2022-10-16 11:15:52,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:15:52,436 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 63 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:52,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 308 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-10-16 11:15:52,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 78. [2022-10-16 11:15:52,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 73 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:52,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2022-10-16 11:15:52,456 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 12 [2022-10-16 11:15:52,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:52,457 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2022-10-16 11:15:52,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2022-10-16 11:15:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:15:52,458 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:52,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:52,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:52,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:52,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:52,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:52,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1673386516, now seen corresponding path program 1 times [2022-10-16 11:15:52,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:52,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689500876] [2022-10-16 11:15:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:52,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:52,690 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:52,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902866543] [2022-10-16 11:15:52,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:52,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:52,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:52,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:52,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:15:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:52,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:15:52,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:52,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:52,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:52,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:52,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689500876] [2022-10-16 11:15:52,778 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:52,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902866543] [2022-10-16 11:15:52,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902866543] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:52,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:52,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:15:52,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145203609] [2022-10-16 11:15:52,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:52,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:15:52,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:52,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:15:52,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:52,782 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:52,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:52,826 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2022-10-16 11:15:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:15:52,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-10-16 11:15:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:52,828 INFO L225 Difference]: With dead ends: 94 [2022-10-16 11:15:52,828 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 11:15:52,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:15:52,830 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 62 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:52,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 169 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 11:15:52,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2022-10-16 11:15:52,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.5576923076923077) internal successors, (81), 72 states have internal predecessors, (81), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:52,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2022-10-16 11:15:52,840 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 13 [2022-10-16 11:15:52,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:52,841 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2022-10-16 11:15:52,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:52,841 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2022-10-16 11:15:52,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:15:52,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:52,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:52,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:53,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:53,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:53,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:53,060 INFO L85 PathProgramCache]: Analyzing trace with hash -172245434, now seen corresponding path program 1 times [2022-10-16 11:15:53,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:53,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386154623] [2022-10-16 11:15:53,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:53,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:53,075 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:53,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169722413] [2022-10-16 11:15:53,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:53,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:53,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:53,077 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:53,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:15:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:53,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:15:53,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:15:53,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:53,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:53,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386154623] [2022-10-16 11:15:53,168 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:53,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169722413] [2022-10-16 11:15:53,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169722413] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:53,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:53,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:15:53,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213201816] [2022-10-16 11:15:53,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:53,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:15:53,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:53,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:15:53,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:53,172 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:53,219 INFO L93 Difference]: Finished difference Result 139 states and 156 transitions. [2022-10-16 11:15:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:15:53,219 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-16 11:15:53,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:53,221 INFO L225 Difference]: With dead ends: 139 [2022-10-16 11:15:53,221 INFO L226 Difference]: Without dead ends: 138 [2022-10-16 11:15:53,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:15:53,223 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 58 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:53,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 204 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:53,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-10-16 11:15:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 85. [2022-10-16 11:15:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.5166666666666666) internal successors, (91), 80 states have internal predecessors, (91), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:53,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2022-10-16 11:15:53,234 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2022-10-16 11:15:53,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:53,235 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2022-10-16 11:15:53,235 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:53,235 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2022-10-16 11:15:53,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:15:53,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:53,236 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:53,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 11:15:53,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:53,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:53,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:53,452 INFO L85 PathProgramCache]: Analyzing trace with hash -172243768, now seen corresponding path program 1 times [2022-10-16 11:15:53,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:53,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812371091] [2022-10-16 11:15:53,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:53,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:53,471 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:53,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288384605] [2022-10-16 11:15:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:53,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:53,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:53,474 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:53,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:15:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:53,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:15:53,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:53,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:53,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:15:53,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:53,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:53,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812371091] [2022-10-16 11:15:53,638 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:53,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288384605] [2022-10-16 11:15:53,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288384605] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:15:53,639 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:15:53,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 11:15:53,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262218326] [2022-10-16 11:15:53,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:15:53,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:15:53,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:15:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:15:53,642 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:53,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:53,779 INFO L93 Difference]: Finished difference Result 302 states and 350 transitions. [2022-10-16 11:15:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 11:15:53,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-16 11:15:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:53,783 INFO L225 Difference]: With dead ends: 302 [2022-10-16 11:15:53,783 INFO L226 Difference]: Without dead ends: 301 [2022-10-16 11:15:53,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 11:15:53,785 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 266 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:53,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 588 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:15:53,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-10-16 11:15:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 109. [2022-10-16 11:15:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2022-10-16 11:15:53,801 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 16 [2022-10-16 11:15:53,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:53,801 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2022-10-16 11:15:53,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:53,802 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2022-10-16 11:15:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 11:15:53,803 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:53,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:53,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:54,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:54,017 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:54,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1044641094, now seen corresponding path program 1 times [2022-10-16 11:15:54,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:54,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628685210] [2022-10-16 11:15:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:54,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:54,034 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:54,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570428197] [2022-10-16 11:15:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:54,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:54,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:54,037 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:54,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 11:15:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:54,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:15:54,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:15:54,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:54,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:54,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628685210] [2022-10-16 11:15:54,123 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:54,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570428197] [2022-10-16 11:15:54,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570428197] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:54,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:54,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:15:54,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749938183] [2022-10-16 11:15:54,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:54,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:15:54,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:54,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:15:54,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:54,126 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:54,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:54,160 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions. [2022-10-16 11:15:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:15:54,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-10-16 11:15:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:54,162 INFO L225 Difference]: With dead ends: 124 [2022-10-16 11:15:54,162 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 11:15:54,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:15:54,163 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 57 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:54,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 154 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 11:15:54,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 108. [2022-10-16 11:15:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 103 states have internal predecessors, (120), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 126 transitions. [2022-10-16 11:15:54,175 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 126 transitions. Word has length 17 [2022-10-16 11:15:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:54,176 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 126 transitions. [2022-10-16 11:15:54,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 126 transitions. [2022-10-16 11:15:54,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:15:54,177 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:54,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:54,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:54,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:54,393 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:54,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:54,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2142771703, now seen corresponding path program 1 times [2022-10-16 11:15:54,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:54,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907797831] [2022-10-16 11:15:54,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:54,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:54,412 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:54,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560543773] [2022-10-16 11:15:54,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:54,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:54,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:54,414 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:54,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 11:15:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:54,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:15:54,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:15:54,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:54,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:54,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907797831] [2022-10-16 11:15:54,497 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:54,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560543773] [2022-10-16 11:15:54,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560543773] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:54,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:54,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:15:54,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103832474] [2022-10-16 11:15:54,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:54,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:15:54,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:54,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:15:54,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:15:54,500 INFO L87 Difference]: Start difference. First operand 108 states and 126 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 11:15:54,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:54,538 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2022-10-16 11:15:54,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:15:54,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-10-16 11:15:54,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:54,540 INFO L225 Difference]: With dead ends: 108 [2022-10-16 11:15:54,540 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 11:15:54,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:15:54,541 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:54,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 50 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:54,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 11:15:54,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-10-16 11:15:54,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 84 states have (on average 1.4047619047619047) internal successors, (118), 101 states have internal predecessors, (118), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2022-10-16 11:15:54,552 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 23 [2022-10-16 11:15:54,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:54,552 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2022-10-16 11:15:54,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 11:15:54,553 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2022-10-16 11:15:54,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 11:15:54,554 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:54,554 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:54,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:54,768 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,SelfDestructingSolverStorable7 [2022-10-16 11:15:54,769 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:54,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:54,770 INFO L85 PathProgramCache]: Analyzing trace with hash 452456706, now seen corresponding path program 1 times [2022-10-16 11:15:54,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:54,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557854469] [2022-10-16 11:15:54,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:54,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:54,784 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:54,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16191279] [2022-10-16 11:15:54,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:54,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:54,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:54,786 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:54,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 11:15:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:54,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:15:54,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:54,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:15:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:15:55,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:55,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557854469] [2022-10-16 11:15:55,038 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:55,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16191279] [2022-10-16 11:15:55,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16191279] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:15:55,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:15:55,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-10-16 11:15:55,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555793299] [2022-10-16 11:15:55,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:15:55,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:15:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:55,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:15:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:15:55,041 INFO L87 Difference]: Start difference. First operand 106 states and 124 transitions. Second operand has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:55,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:55,529 INFO L93 Difference]: Finished difference Result 300 states and 341 transitions. [2022-10-16 11:15:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 11:15:55,530 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-10-16 11:15:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:55,531 INFO L225 Difference]: With dead ends: 300 [2022-10-16 11:15:55,531 INFO L226 Difference]: Without dead ends: 220 [2022-10-16 11:15:55,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:15:55,533 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 450 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:55,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 514 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:15:55,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-16 11:15:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 110. [2022-10-16 11:15:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 105 states have internal predecessors, (122), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2022-10-16 11:15:55,543 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 21 [2022-10-16 11:15:55,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:55,544 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2022-10-16 11:15:55,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 11:15:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2022-10-16 11:15:55,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:15:55,545 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:55,545 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:55,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:55,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:55,759 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:55,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:55,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2001413265, now seen corresponding path program 1 times [2022-10-16 11:15:55,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:55,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137102110] [2022-10-16 11:15:55,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:55,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:55,791 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:55,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638422561] [2022-10-16 11:15:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:55,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:55,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:55,794 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:55,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 11:15:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:55,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:15:55,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:55,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:15:55,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:55,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:55,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137102110] [2022-10-16 11:15:55,889 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:55,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638422561] [2022-10-16 11:15:55,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638422561] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:55,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:55,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:15:55,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954107812] [2022-10-16 11:15:55,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:55,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:15:55,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:55,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:15:55,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:15:55,892 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 11:15:55,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:55,932 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2022-10-16 11:15:55,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:15:55,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-10-16 11:15:55,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:55,935 INFO L225 Difference]: With dead ends: 110 [2022-10-16 11:15:55,935 INFO L226 Difference]: Without dead ends: 108 [2022-10-16 11:15:55,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:15:55,936 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:55,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 50 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-16 11:15:55,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-10-16 11:15:55,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 103 states have internal predecessors, (120), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 126 transitions. [2022-10-16 11:15:55,950 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 126 transitions. Word has length 24 [2022-10-16 11:15:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:55,951 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 126 transitions. [2022-10-16 11:15:55,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 11:15:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 126 transitions. [2022-10-16 11:15:55,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 11:15:55,953 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:55,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:55,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:56,166 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,SelfDestructingSolverStorable9 [2022-10-16 11:15:56,167 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:56,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:56,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1914268981, now seen corresponding path program 1 times [2022-10-16 11:15:56,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:56,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836967421] [2022-10-16 11:15:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:56,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:56,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:56,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569359838] [2022-10-16 11:15:56,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:56,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:56,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:56,185 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:56,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 11:15:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:56,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:15:56,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:15:56,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:56,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:56,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836967421] [2022-10-16 11:15:56,311 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:56,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569359838] [2022-10-16 11:15:56,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569359838] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:56,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:56,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:15:56,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091994658] [2022-10-16 11:15:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:56,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:15:56,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:56,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:15:56,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:15:56,314 INFO L87 Difference]: Start difference. First operand 108 states and 126 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:56,457 INFO L93 Difference]: Finished difference Result 179 states and 202 transitions. [2022-10-16 11:15:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:15:56,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-10-16 11:15:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:56,459 INFO L225 Difference]: With dead ends: 179 [2022-10-16 11:15:56,459 INFO L226 Difference]: Without dead ends: 177 [2022-10-16 11:15:56,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:15:56,460 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 121 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:56,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 205 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:15:56,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-10-16 11:15:56,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 134. [2022-10-16 11:15:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.3693693693693694) internal successors, (152), 126 states have internal predecessors, (152), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 11:15:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 162 transitions. [2022-10-16 11:15:56,474 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 162 transitions. Word has length 25 [2022-10-16 11:15:56,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:56,474 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 162 transitions. [2022-10-16 11:15:56,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 162 transitions. [2022-10-16 11:15:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:15:56,476 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:56,476 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:56,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:56,689 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,SelfDestructingSolverStorable10 [2022-10-16 11:15:56,690 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:56,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:56,691 INFO L85 PathProgramCache]: Analyzing trace with hash 787203825, now seen corresponding path program 1 times [2022-10-16 11:15:56,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:56,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289957845] [2022-10-16 11:15:56,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:56,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:56,710 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:56,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432704449] [2022-10-16 11:15:56,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:56,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:56,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:56,713 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:56,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 11:15:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:56,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:15:56,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 11:15:56,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:56,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:56,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289957845] [2022-10-16 11:15:56,820 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:56,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432704449] [2022-10-16 11:15:56,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432704449] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:56,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:56,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:15:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660979329] [2022-10-16 11:15:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:56,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:15:56,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:56,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:15:56,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:56,823 INFO L87 Difference]: Start difference. First operand 134 states and 162 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:56,875 INFO L93 Difference]: Finished difference Result 136 states and 164 transitions. [2022-10-16 11:15:56,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:15:56,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-10-16 11:15:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:56,877 INFO L225 Difference]: With dead ends: 136 [2022-10-16 11:15:56,877 INFO L226 Difference]: Without dead ends: 134 [2022-10-16 11:15:56,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:56,879 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 60 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:56,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 57 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:56,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-10-16 11:15:56,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2022-10-16 11:15:56,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 124 states have internal predecessors, (148), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 11:15:56,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2022-10-16 11:15:56,892 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 26 [2022-10-16 11:15:56,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:56,895 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2022-10-16 11:15:56,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2022-10-16 11:15:56,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 11:15:56,898 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:56,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:56,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:57,099 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,SelfDestructingSolverStorable11 [2022-10-16 11:15:57,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:57,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:57,100 INFO L85 PathProgramCache]: Analyzing trace with hash 489544582, now seen corresponding path program 2 times [2022-10-16 11:15:57,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:57,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597781053] [2022-10-16 11:15:57,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:57,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:57,111 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:57,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357758319] [2022-10-16 11:15:57,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:15:57,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:57,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:57,113 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:57,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 11:15:57,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:15:57,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:15:57,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:15:57,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 11:15:57,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:15:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 11:15:57,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:57,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597781053] [2022-10-16 11:15:57,257 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:57,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357758319] [2022-10-16 11:15:57,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357758319] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:15:57,257 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:15:57,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:15:57,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375744154] [2022-10-16 11:15:57,258 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:15:57,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:15:57,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:57,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:15:57,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:15:57,261 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:15:57,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:57,382 INFO L93 Difference]: Finished difference Result 137 states and 159 transitions. [2022-10-16 11:15:57,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:15:57,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-10-16 11:15:57,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:57,389 INFO L225 Difference]: With dead ends: 137 [2022-10-16 11:15:57,389 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 11:15:57,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-10-16 11:15:57,391 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 168 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:57,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 159 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:15:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 11:15:57,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 115. [2022-10-16 11:15:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.3368421052631578) internal successors, (127), 107 states have internal predecessors, (127), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 11:15:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 137 transitions. [2022-10-16 11:15:57,404 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 137 transitions. Word has length 25 [2022-10-16 11:15:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:57,404 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 137 transitions. [2022-10-16 11:15:57,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:15:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 137 transitions. [2022-10-16 11:15:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 11:15:57,409 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:57,409 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:57,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:57,624 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,SelfDestructingSolverStorable12 [2022-10-16 11:15:57,624 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:57,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:57,625 INFO L85 PathProgramCache]: Analyzing trace with hash 588634771, now seen corresponding path program 1 times [2022-10-16 11:15:57,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:57,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141760859] [2022-10-16 11:15:57,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:57,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:57,639 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:57,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023284942] [2022-10-16 11:15:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:57,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:57,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:57,641 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:57,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 11:15:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:57,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 11:15:57,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:15:57,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:57,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:57,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141760859] [2022-10-16 11:15:57,739 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:57,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023284942] [2022-10-16 11:15:57,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023284942] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:57,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:57,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:15:57,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119968315] [2022-10-16 11:15:57,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:57,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:15:57,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:57,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:15:57,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:15:57,742 INFO L87 Difference]: Start difference. First operand 115 states and 137 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:57,855 INFO L93 Difference]: Finished difference Result 175 states and 197 transitions. [2022-10-16 11:15:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 11:15:57,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-10-16 11:15:57,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:57,870 INFO L225 Difference]: With dead ends: 175 [2022-10-16 11:15:57,870 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 11:15:57,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:15:57,871 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 92 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:57,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 162 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:15:57,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 11:15:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 93. [2022-10-16 11:15:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.32) internal successors, (99), 87 states have internal predecessors, (99), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2022-10-16 11:15:57,882 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 28 [2022-10-16 11:15:57,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:57,882 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2022-10-16 11:15:57,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2022-10-16 11:15:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 11:15:57,883 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:57,883 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:57,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:58,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:58,098 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:58,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:58,099 INFO L85 PathProgramCache]: Analyzing trace with hash -277027908, now seen corresponding path program 2 times [2022-10-16 11:15:58,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:58,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590238222] [2022-10-16 11:15:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:58,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:58,113 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:58,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962893757] [2022-10-16 11:15:58,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:15:58,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:58,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:58,115 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:58,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:15:58,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:15:58,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:15:58,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:15:58,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:15:58,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:15:58,250 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:15:58,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:58,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590238222] [2022-10-16 11:15:58,251 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:58,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962893757] [2022-10-16 11:15:58,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962893757] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:15:58,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:15:58,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:15:58,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830956754] [2022-10-16 11:15:58,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:15:58,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:15:58,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:58,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:15:58,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:15:58,253 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:15:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:58,380 INFO L93 Difference]: Finished difference Result 134 states and 153 transitions. [2022-10-16 11:15:58,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:15:58,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-10-16 11:15:58,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:58,382 INFO L225 Difference]: With dead ends: 134 [2022-10-16 11:15:58,382 INFO L226 Difference]: Without dead ends: 133 [2022-10-16 11:15:58,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-10-16 11:15:58,384 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 219 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:58,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 172 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:15:58,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-16 11:15:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 77. [2022-10-16 11:15:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 71 states have internal predecessors, (79), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:58,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2022-10-16 11:15:58,394 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 28 [2022-10-16 11:15:58,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:58,395 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2022-10-16 11:15:58,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:15:58,395 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2022-10-16 11:15:58,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:15:58,395 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:58,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:58,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:58,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 11:15:58,610 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:58,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:58,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1025459693, now seen corresponding path program 1 times [2022-10-16 11:15:58,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:58,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770577297] [2022-10-16 11:15:58,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:58,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:58,624 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:58,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [972289856] [2022-10-16 11:15:58,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:58,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:58,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:58,625 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:58,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:15:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:58,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:15:58,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 11:15:58,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:58,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:58,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770577297] [2022-10-16 11:15:58,734 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:58,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972289856] [2022-10-16 11:15:58,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972289856] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:58,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:58,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:15:58,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646390941] [2022-10-16 11:15:58,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:58,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:15:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:58,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:15:58,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:58,739 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:58,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:58,786 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2022-10-16 11:15:58,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:15:58,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2022-10-16 11:15:58,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:58,787 INFO L225 Difference]: With dead ends: 78 [2022-10-16 11:15:58,787 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 11:15:58,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:15:58,788 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 87 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:58,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 53 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:58,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 11:15:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2022-10-16 11:15:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 69 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2022-10-16 11:15:58,797 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 34 [2022-10-16 11:15:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:58,797 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2022-10-16 11:15:58,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2022-10-16 11:15:58,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 11:15:58,798 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:58,798 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:58,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:59,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:15:59,013 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:59,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:59,013 INFO L85 PathProgramCache]: Analyzing trace with hash 632753739, now seen corresponding path program 1 times [2022-10-16 11:15:59,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:59,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745287633] [2022-10-16 11:15:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:59,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:59,026 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:59,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315787471] [2022-10-16 11:15:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:59,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:59,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:59,028 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:59,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 11:15:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:59,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:15:59,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:59,109 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 11:15:59,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:59,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:59,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745287633] [2022-10-16 11:15:59,110 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:59,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315787471] [2022-10-16 11:15:59,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315787471] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:59,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:59,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:15:59,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596294173] [2022-10-16 11:15:59,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:59,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:15:59,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:59,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:15:59,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:15:59,113 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:59,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:59,137 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2022-10-16 11:15:59,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:15:59,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2022-10-16 11:15:59,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:59,139 INFO L225 Difference]: With dead ends: 75 [2022-10-16 11:15:59,139 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 11:15:59,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:15:59,141 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 33 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:59,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 64 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:59,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 11:15:59,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-10-16 11:15:59,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 65 states have internal predecessors, (73), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:59,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2022-10-16 11:15:59,152 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 37 [2022-10-16 11:15:59,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:59,153 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2022-10-16 11:15:59,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 11:15:59,154 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2022-10-16 11:15:59,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 11:15:59,154 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:59,154 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:59,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:59,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 11:15:59,369 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:59,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:59,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1979961835, now seen corresponding path program 1 times [2022-10-16 11:15:59,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:59,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939692585] [2022-10-16 11:15:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:59,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:59,383 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:59,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [204119988] [2022-10-16 11:15:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:59,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:59,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:59,385 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:59,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 11:15:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:59,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:15:59,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:15:59,462 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 11:15:59,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:15:59,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:15:59,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939692585] [2022-10-16 11:15:59,463 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:15:59,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204119988] [2022-10-16 11:15:59,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204119988] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:15:59,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:15:59,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:15:59,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521029092] [2022-10-16 11:15:59,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:15:59,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:15:59,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:15:59,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:15:59,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:15:59,465 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 11:15:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:15:59,498 INFO L93 Difference]: Finished difference Result 144 states and 160 transitions. [2022-10-16 11:15:59,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:15:59,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-10-16 11:15:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:15:59,499 INFO L225 Difference]: With dead ends: 144 [2022-10-16 11:15:59,499 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 11:15:59,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:15:59,500 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 28 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:15:59,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 122 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:15:59,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 11:15:59,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 77. [2022-10-16 11:15:59,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 66 states have (on average 1.196969696969697) internal successors, (79), 71 states have internal predecessors, (79), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:15:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2022-10-16 11:15:59,512 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 46 [2022-10-16 11:15:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:15:59,512 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2022-10-16 11:15:59,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 11:15:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2022-10-16 11:15:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 11:15:59,513 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:15:59,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:15:59,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 11:15:59,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 11:15:59,728 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:15:59,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:15:59,729 INFO L85 PathProgramCache]: Analyzing trace with hash 726657559, now seen corresponding path program 1 times [2022-10-16 11:15:59,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:15:59,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523878374] [2022-10-16 11:15:59,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:59,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:15:59,742 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:15:59,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602193471] [2022-10-16 11:15:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:15:59,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:15:59,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:15:59,744 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:15:59,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 11:15:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:15:59,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 11:15:59,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:16:00,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:16:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 11:16:00,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:00,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523878374] [2022-10-16 11:16:00,385 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:00,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602193471] [2022-10-16 11:16:00,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602193471] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:16:00,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:16:00,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 19 [2022-10-16 11:16:00,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778861721] [2022-10-16 11:16:00,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:16:00,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 11:16:00,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:00,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 11:16:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:16:00,390 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 19 states, 17 states have (on average 2.764705882352941) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-16 11:16:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:01,504 INFO L93 Difference]: Finished difference Result 356 states and 403 transitions. [2022-10-16 11:16:01,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-10-16 11:16:01,504 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 2.764705882352941) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 46 [2022-10-16 11:16:01,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:01,508 INFO L225 Difference]: With dead ends: 356 [2022-10-16 11:16:01,508 INFO L226 Difference]: Without dead ends: 305 [2022-10-16 11:16:01,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 70 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=438, Invalid=1724, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 11:16:01,511 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 500 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:01,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 765 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:16:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-10-16 11:16:01,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 130. [2022-10-16 11:16:01,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.219298245614035) internal successors, (139), 120 states have internal predecessors, (139), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 11:16:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2022-10-16 11:16:01,538 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 46 [2022-10-16 11:16:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:01,539 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2022-10-16 11:16:01,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 2.764705882352941) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-16 11:16:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2022-10-16 11:16:01,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 11:16:01,540 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:01,540 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:01,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 11:16:01,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:01,751 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 11:16:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:01,752 INFO L85 PathProgramCache]: Analyzing trace with hash 277700905, now seen corresponding path program 1 times [2022-10-16 11:16:01,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:01,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022505503] [2022-10-16 11:16:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:01,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:01,766 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:01,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638208767] [2022-10-16 11:16:01,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:01,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:01,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:01,768 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:16:01,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 11:16:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:01,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 11:16:01,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:01,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2022-10-16 11:16:01,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2022-10-16 11:16:02,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2022-10-16 11:16:02,291 INFO L356 Elim1Store]: treesize reduction 42, result has 49.4 percent of original size [2022-10-16 11:16:02,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 163 [2022-10-16 11:16:02,514 INFO L356 Elim1Store]: treesize reduction 170, result has 10.5 percent of original size [2022-10-16 11:16:02,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 172 treesize of output 91 [2022-10-16 11:16:05,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 283 treesize of output 266 [2022-10-16 11:16:14,852 WARN L233 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 133 DAG size of output: 65 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-10-16 11:16:14,854 INFO L356 Elim1Store]: treesize reduction 637, result has 24.1 percent of original size [2022-10-16 11:16:14,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 269 treesize of output 992 [2022-10-16 11:17:06,029 INFO L356 Elim1Store]: treesize reduction 418, result has 15.2 percent of original size [2022-10-16 11:17:06,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 875 treesize of output 858 [2022-10-16 11:18:07,069 WARN L233 SmtUtils]: Spent 19.84s on a formula simplification. DAG size of input: 218 DAG size of output: 87 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-10-16 11:18:07,071 INFO L356 Elim1Store]: treesize reduction 3294, result has 13.9 percent of original size [2022-10-16 11:18:07,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 6 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 31 case distinctions, treesize of input 1515 treesize of output 5107