/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/termination-crafted/Gothenburg-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:49:26,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:49:26,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:49:27,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:49:27,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:49:27,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:49:27,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:49:27,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:49:27,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:49:27,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:49:27,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:49:27,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:49:27,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:49:27,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:49:27,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:49:27,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:49:27,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:49:27,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:49:27,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:49:27,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:49:27,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:49:27,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:49:27,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:49:27,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:49:27,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:49:27,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:49:27,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:49:27,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:49:27,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:49:27,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:49:27,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:49:27,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:49:27,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:49:27,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:49:27,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:49:27,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:49:27,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:49:27,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:49:27,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:49:27,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:49:27,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:49:27,149 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 17:49:27,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:49:27,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:49:27,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:49:27,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:49:27,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:49:27,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:49:27,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:49:27,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:49:27,207 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:49:27,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:49:27,208 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:49:27,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:49:27,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:49:27,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:49:27,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:49:27,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:49:27,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:49:27,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:49:27,210 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:49:27,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:49:27,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:49:27,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:49:27,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:49:27,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:49:27,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:49:27,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:49:27,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:49:27,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:49:27,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:49:27,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:49:27,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:49:27,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:49:27,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:49:27,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:49:27,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:49:27,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:49:27,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:49:27,642 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:49:27,643 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:49:27,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Gothenburg-1.c [2022-10-16 17:49:27,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf18ad31/860a00b3edc740afb61f95f19b4793d2/FLAG5cace5b9b [2022-10-16 17:49:28,394 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:49:28,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Gothenburg-1.c [2022-10-16 17:49:28,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf18ad31/860a00b3edc740afb61f95f19b4793d2/FLAG5cace5b9b [2022-10-16 17:49:28,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf18ad31/860a00b3edc740afb61f95f19b4793d2 [2022-10-16 17:49:28,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:49:28,800 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:49:28,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:49:28,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:49:28,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:49:28,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:49:28" (1/1) ... [2022-10-16 17:49:28,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb99a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:28, skipping insertion in model container [2022-10-16 17:49:28,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:49:28" (1/1) ... [2022-10-16 17:49:28,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:49:28,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:49:28,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:49:28,997 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:49:29,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:49:29,032 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:49:29,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29 WrapperNode [2022-10-16 17:49:29,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:49:29,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:49:29,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:49:29,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:49:29,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,077 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2022-10-16 17:49:29,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:49:29,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:49:29,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:49:29,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:49:29,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,102 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:49:29,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:49:29,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:49:29,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:49:29,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (1/1) ... [2022-10-16 17:49:29,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:49:29,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:29,148 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 17:49:29,173 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 17:49:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:49:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:49:29,334 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:49:29,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:49:29,572 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:49:29,582 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:49:29,582 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:49:29,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:49:29 BoogieIcfgContainer [2022-10-16 17:49:29,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:49:29,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:49:29,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:49:29,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:49:29,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:49:28" (1/3) ... [2022-10-16 17:49:29,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258c5bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:49:29, skipping insertion in model container [2022-10-16 17:49:29,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:29" (2/3) ... [2022-10-16 17:49:29,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258c5bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:49:29, skipping insertion in model container [2022-10-16 17:49:29,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:49:29" (3/3) ... [2022-10-16 17:49:29,597 INFO L112 eAbstractionObserver]: Analyzing ICFG Gothenburg-1.c [2022-10-16 17:49:29,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:49:29,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 17:49:29,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:49:29,697 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;@ad4c4ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:49:29,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 17:49:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.826086956521739) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:29,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:49:29,710 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:29,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:29,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:29,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1271628525, now seen corresponding path program 1 times [2022-10-16 17:49:29,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:29,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225362332] [2022-10-16 17:49:29,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:29,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:30,061 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 17:49:30,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:30,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225362332] [2022-10-16 17:49:30,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225362332] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:30,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:30,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:49:30,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416207187] [2022-10-16 17:49:30,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:30,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:49:30,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:30,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:49:30,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:49:30,142 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.826086956521739) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:30,339 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2022-10-16 17:49:30,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:49:30,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:49:30,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:30,359 INFO L225 Difference]: With dead ends: 58 [2022-10-16 17:49:30,360 INFO L226 Difference]: Without dead ends: 43 [2022-10-16 17:49:30,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:30,375 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 64 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:30,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 35 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:30,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-10-16 17:49:30,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2022-10-16 17:49:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 33 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2022-10-16 17:49:30,429 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 9 [2022-10-16 17:49:30,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:30,430 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2022-10-16 17:49:30,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,432 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2022-10-16 17:49:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 17:49:30,433 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:30,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:30,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:49:30,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:30,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:30,437 INFO L85 PathProgramCache]: Analyzing trace with hash 765778679, now seen corresponding path program 1 times [2022-10-16 17:49:30,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:30,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64396118] [2022-10-16 17:49:30,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:30,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:30,543 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 17:49:30,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:30,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64396118] [2022-10-16 17:49:30,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64396118] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:30,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:30,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:49:30,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722670177] [2022-10-16 17:49:30,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:30,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:49:30,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:30,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:49:30,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:49:30,551 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:30,629 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2022-10-16 17:49:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:49:30,629 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 17:49:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:30,631 INFO L225 Difference]: With dead ends: 44 [2022-10-16 17:49:30,631 INFO L226 Difference]: Without dead ends: 43 [2022-10-16 17:49:30,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:30,634 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 46 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:30,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 17 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-10-16 17:49:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2022-10-16 17:49:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2022-10-16 17:49:30,643 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 10 [2022-10-16 17:49:30,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:30,643 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2022-10-16 17:49:30,644 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,644 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2022-10-16 17:49:30,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:49:30,645 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:30,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:30,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:49:30,646 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:30,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2030664657, now seen corresponding path program 1 times [2022-10-16 17:49:30,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:30,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030777881] [2022-10-16 17:49:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:30,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:30,740 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 17:49:30,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:30,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030777881] [2022-10-16 17:49:30,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030777881] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:30,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:30,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:49:30,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204832029] [2022-10-16 17:49:30,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:30,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:49:30,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:30,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:49:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:30,746 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:30,894 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-10-16 17:49:30,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:49:30,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 17:49:30,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:30,896 INFO L225 Difference]: With dead ends: 41 [2022-10-16 17:49:30,896 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 17:49:30,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:49:30,899 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 78 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:30,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 9 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:30,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 17:49:30,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-10-16 17:49:30,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.5) internal successors, (39), 37 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2022-10-16 17:49:30,909 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 11 [2022-10-16 17:49:30,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:30,909 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2022-10-16 17:49:30,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2022-10-16 17:49:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:49:30,910 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:30,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:30,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:49:30,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:30,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1473905145, now seen corresponding path program 1 times [2022-10-16 17:49:30,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:30,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082709141] [2022-10-16 17:49:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:30,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:31,061 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 17:49:31,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:31,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082709141] [2022-10-16 17:49:31,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082709141] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:31,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:31,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:49:31,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856946548] [2022-10-16 17:49:31,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:31,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:49:31,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:31,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:49:31,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:31,065 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:31,192 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2022-10-16 17:49:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:49:31,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:49:31,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:31,200 INFO L225 Difference]: With dead ends: 41 [2022-10-16 17:49:31,200 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 17:49:31,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:49:31,203 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 71 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:31,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 9 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 17:49:31,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-16 17:49:31,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 38 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2022-10-16 17:49:31,234 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 12 [2022-10-16 17:49:31,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:31,234 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2022-10-16 17:49:31,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,238 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2022-10-16 17:49:31,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 17:49:31,239 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:31,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:31,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:49:31,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:31,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1657581235, now seen corresponding path program 1 times [2022-10-16 17:49:31,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:31,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869707738] [2022-10-16 17:49:31,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:31,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:31,394 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 17:49:31,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:31,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869707738] [2022-10-16 17:49:31,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869707738] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:31,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:31,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:49:31,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586927419] [2022-10-16 17:49:31,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:31,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:49:31,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:31,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:49:31,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:49:31,400 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:31,469 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2022-10-16 17:49:31,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:49:31,470 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 17:49:31,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:31,474 INFO L225 Difference]: With dead ends: 50 [2022-10-16 17:49:31,474 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 17:49:31,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:31,480 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 54 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:31,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 19 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 17:49:31,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 40. [2022-10-16 17:49:31,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 39 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2022-10-16 17:49:31,501 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 15 [2022-10-16 17:49:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:31,501 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2022-10-16 17:49:31,505 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,505 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2022-10-16 17:49:31,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:49:31,506 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:31,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:31,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:49:31,507 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:31,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:31,507 INFO L85 PathProgramCache]: Analyzing trace with hash -154589187, now seen corresponding path program 1 times [2022-10-16 17:49:31,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:31,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160364730] [2022-10-16 17:49:31,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:31,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:31,631 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 17:49:31,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:31,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160364730] [2022-10-16 17:49:31,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160364730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:31,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:31,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:49:31,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376505504] [2022-10-16 17:49:31,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:31,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:49:31,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:31,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:49:31,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:49:31,639 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:31,701 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2022-10-16 17:49:31,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:49:31,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 17:49:31,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:31,703 INFO L225 Difference]: With dead ends: 50 [2022-10-16 17:49:31,704 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 17:49:31,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:31,706 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 51 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:31,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 19 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:49:31,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 17:49:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2022-10-16 17:49:31,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 40 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2022-10-16 17:49:31,716 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 16 [2022-10-16 17:49:31,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:31,716 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2022-10-16 17:49:31,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,717 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2022-10-16 17:49:31,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:49:31,717 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:31,718 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 17:49:31,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:49:31,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:31,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:31,719 INFO L85 PathProgramCache]: Analyzing trace with hash -497297419, now seen corresponding path program 1 times [2022-10-16 17:49:31,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:31,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339460430] [2022-10-16 17:49:31,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:31,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:31,820 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 17:49:31,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:31,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339460430] [2022-10-16 17:49:31,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339460430] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:31,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:31,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:49:31,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506733490] [2022-10-16 17:49:31,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:31,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:49:31,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:31,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:49:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:31,826 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:31,930 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2022-10-16 17:49:31,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:49:31,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 17:49:31,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:31,932 INFO L225 Difference]: With dead ends: 47 [2022-10-16 17:49:31,933 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 17:49:31,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:49:31,939 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 89 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:31,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 10 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:31,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 17:49:31,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2022-10-16 17:49:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.40625) internal successors, (45), 43 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2022-10-16 17:49:31,962 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 17 [2022-10-16 17:49:31,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:31,963 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2022-10-16 17:49:31,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:31,963 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2022-10-16 17:49:31,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 17:49:31,969 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:31,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:31,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:49:31,970 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:31,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:31,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1763649279, now seen corresponding path program 1 times [2022-10-16 17:49:31,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:31,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120158529] [2022-10-16 17:49:31,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:31,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:32,091 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 17:49:32,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:32,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120158529] [2022-10-16 17:49:32,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120158529] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:32,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:32,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:49:32,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225179683] [2022-10-16 17:49:32,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:32,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:49:32,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:32,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:49:32,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:32,095 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:32,185 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2022-10-16 17:49:32,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:49:32,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 17:49:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:32,187 INFO L225 Difference]: With dead ends: 47 [2022-10-16 17:49:32,187 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 17:49:32,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:49:32,189 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 82 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:32,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 10 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 17:49:32,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-16 17:49:32,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 44 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:32,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2022-10-16 17:49:32,196 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 18 [2022-10-16 17:49:32,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:32,196 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2022-10-16 17:49:32,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:32,197 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2022-10-16 17:49:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 17:49:32,198 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:32,198 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:32,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:49:32,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:32,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:32,199 INFO L85 PathProgramCache]: Analyzing trace with hash -414320189, now seen corresponding path program 1 times [2022-10-16 17:49:32,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:32,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537332527] [2022-10-16 17:49:32,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:32,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:32,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:32,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537332527] [2022-10-16 17:49:32,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537332527] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:32,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865960042] [2022-10-16 17:49:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:32,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:32,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:32,286 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 17:49:32,293 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 17:49:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:32,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:49:32,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:32,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:32,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865960042] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:32,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:32,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-16 17:49:32,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581204595] [2022-10-16 17:49:32,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:32,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 17:49:32,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 17:49:32,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:49:32,740 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:33,048 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2022-10-16 17:49:33,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 17:49:33,048 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 17:49:33,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:33,052 INFO L225 Difference]: With dead ends: 93 [2022-10-16 17:49:33,052 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 17:49:33,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2022-10-16 17:49:33,056 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 273 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:33,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 16 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 17:49:33,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 73. [2022-10-16 17:49:33,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 72 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2022-10-16 17:49:33,086 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 22 [2022-10-16 17:49:33,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:33,087 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2022-10-16 17:49:33,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,087 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2022-10-16 17:49:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 17:49:33,088 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:33,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:33,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 17:49:33,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:33,304 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:33,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:33,305 INFO L85 PathProgramCache]: Analyzing trace with hash 40976097, now seen corresponding path program 1 times [2022-10-16 17:49:33,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:33,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803273357] [2022-10-16 17:49:33,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:33,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:33,376 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 17:49:33,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:33,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803273357] [2022-10-16 17:49:33,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803273357] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:33,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721832163] [2022-10-16 17:49:33,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:33,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:33,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:33,379 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 17:49:33,410 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 17:49:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:33,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:49:33,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:33,557 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 17:49:33,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:33,644 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 17:49:33,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721832163] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:33,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:33,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-16 17:49:33,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356957625] [2022-10-16 17:49:33,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:33,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 17:49:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 17:49:33,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:49:33,647 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:33,896 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2022-10-16 17:49:33,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:49:33,897 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 17:49:33,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:33,898 INFO L225 Difference]: With dead ends: 91 [2022-10-16 17:49:33,899 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 17:49:33,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:49:33,912 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 400 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:33,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 16 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:33,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 17:49:33,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 74. [2022-10-16 17:49:33,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 73 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2022-10-16 17:49:33,921 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 23 [2022-10-16 17:49:33,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:33,921 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2022-10-16 17:49:33,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2022-10-16 17:49:33,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 17:49:33,922 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:33,922 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:33,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 17:49:34,137 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,SelfDestructingSolverStorable9 [2022-10-16 17:49:34,138 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:34,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:34,139 INFO L85 PathProgramCache]: Analyzing trace with hash 747908361, now seen corresponding path program 1 times [2022-10-16 17:49:34,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:34,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932051433] [2022-10-16 17:49:34,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:34,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:34,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:34,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932051433] [2022-10-16 17:49:34,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932051433] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:34,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137206523] [2022-10-16 17:49:34,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:34,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:34,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:34,227 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 17:49:34,255 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 17:49:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:34,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:49:34,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:34,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:34,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137206523] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:34,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:34,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-16 17:49:34,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398229024] [2022-10-16 17:49:34,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:34,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 17:49:34,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:34,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 17:49:34,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:49:34,545 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:34,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:34,820 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2022-10-16 17:49:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 17:49:34,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 17:49:34,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:34,822 INFO L225 Difference]: With dead ends: 95 [2022-10-16 17:49:34,822 INFO L226 Difference]: Without dead ends: 92 [2022-10-16 17:49:34,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:49:34,823 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 349 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:34,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 16 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:34,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-10-16 17:49:34,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 79. [2022-10-16 17:49:34,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 78 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 95 transitions. [2022-10-16 17:49:34,832 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 95 transitions. Word has length 28 [2022-10-16 17:49:34,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:34,832 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 95 transitions. [2022-10-16 17:49:34,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 95 transitions. [2022-10-16 17:49:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 17:49:34,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:34,834 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:34,876 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 17:49:35,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:35,049 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:35,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1710322791, now seen corresponding path program 1 times [2022-10-16 17:49:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:35,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337545441] [2022-10-16 17:49:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:35,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:35,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337545441] [2022-10-16 17:49:35,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337545441] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:35,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950391308] [2022-10-16 17:49:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:35,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:35,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:35,149 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 17:49:35,175 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 17:49:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:35,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:49:35,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:35,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:35,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950391308] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:35,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:35,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-16 17:49:35,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569165699] [2022-10-16 17:49:35,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:35,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 17:49:35,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:35,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 17:49:35,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:49:35,477 INFO L87 Difference]: Start difference. First operand 79 states and 95 transitions. Second operand has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:35,730 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2022-10-16 17:49:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:49:35,731 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 17:49:35,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:35,732 INFO L225 Difference]: With dead ends: 93 [2022-10-16 17:49:35,732 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 17:49:35,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:49:35,736 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 391 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:35,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 24 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 17:49:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2022-10-16 17:49:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 79 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2022-10-16 17:49:35,749 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 29 [2022-10-16 17:49:35,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:35,749 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 92 transitions. [2022-10-16 17:49:35,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:35,750 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions. [2022-10-16 17:49:35,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 17:49:35,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:35,751 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:35,789 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 17:49:35,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:35,953 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:35,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:35,955 INFO L85 PathProgramCache]: Analyzing trace with hash -936845329, now seen corresponding path program 1 times [2022-10-16 17:49:35,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:35,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843435698] [2022-10-16 17:49:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:35,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:36,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:36,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843435698] [2022-10-16 17:49:36,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843435698] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:36,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302480660] [2022-10-16 17:49:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:36,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:36,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:36,103 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 17:49:36,122 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 17:49:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:36,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:49:36,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:36,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:36,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302480660] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:36,514 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:36,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-16 17:49:36,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726084182] [2022-10-16 17:49:36,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:36,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:49:36,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:36,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:49:36,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:49:36,516 INFO L87 Difference]: Start difference. First operand 80 states and 92 transitions. Second operand has 16 states, 15 states have (on average 7.066666666666666) internal successors, (106), 16 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:36,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:36,772 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2022-10-16 17:49:36,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:49:36,773 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.066666666666666) internal successors, (106), 16 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-10-16 17:49:36,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:36,774 INFO L225 Difference]: With dead ends: 83 [2022-10-16 17:49:36,774 INFO L226 Difference]: Without dead ends: 81 [2022-10-16 17:49:36,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:49:36,775 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 188 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:36,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 18 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:36,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-10-16 17:49:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2022-10-16 17:49:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 78 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2022-10-16 17:49:36,784 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 37 [2022-10-16 17:49:36,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:36,784 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2022-10-16 17:49:36,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.066666666666666) internal successors, (106), 16 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-10-16 17:49:36,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 17:49:36,785 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:36,786 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:36,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:49:36,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 17:49:37,000 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1022565945, now seen corresponding path program 1 times [2022-10-16 17:49:37,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:37,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737023654] [2022-10-16 17:49:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:37,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:37,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737023654] [2022-10-16 17:49:37,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737023654] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:37,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059819109] [2022-10-16 17:49:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:37,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:37,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:37,155 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 17:49:37,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:49:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:37,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:49:37,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:37,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:37,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059819109] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:37,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:37,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-16 17:49:37,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388768307] [2022-10-16 17:49:37,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:37,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:49:37,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:37,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:49:37,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:49:37,583 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:37,806 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2022-10-16 17:49:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:49:37,807 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 17:49:37,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:37,808 INFO L225 Difference]: With dead ends: 81 [2022-10-16 17:49:37,808 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 17:49:37,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:49:37,809 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 111 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:37,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 17 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 17:49:37,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-10-16 17:49:37,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 68 states have (on average 1.2647058823529411) internal successors, (86), 78 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:37,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2022-10-16 17:49:37,816 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 38 [2022-10-16 17:49:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:37,817 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2022-10-16 17:49:37,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:37,817 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2022-10-16 17:49:37,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 17:49:37,818 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:37,818 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:37,858 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 17:49:38,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:38,034 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:38,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:38,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2043306933, now seen corresponding path program 1 times [2022-10-16 17:49:38,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:38,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016838973] [2022-10-16 17:49:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:38,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:38,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:38,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016838973] [2022-10-16 17:49:38,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016838973] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:38,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915195991] [2022-10-16 17:49:38,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:38,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:38,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:38,146 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 17:49:38,149 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 17:49:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:38,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:49:38,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:38,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:38,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915195991] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:38,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:38,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-16 17:49:38,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119550857] [2022-10-16 17:49:38,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:38,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:49:38,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:38,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:49:38,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:49:38,565 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 16 states, 15 states have (on average 8.266666666666667) internal successors, (124), 16 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:38,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:38,781 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2022-10-16 17:49:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:49:38,781 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.266666666666667) internal successors, (124), 16 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-16 17:49:38,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:38,782 INFO L225 Difference]: With dead ends: 82 [2022-10-16 17:49:38,782 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 17:49:38,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:49:38,787 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 161 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:38,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 16 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:38,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 17:49:38,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2022-10-16 17:49:38,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 77 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2022-10-16 17:49:38,793 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 43 [2022-10-16 17:49:38,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:38,793 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2022-10-16 17:49:38,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.266666666666667) internal successors, (124), 16 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2022-10-16 17:49:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 17:49:38,794 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:38,794 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:38,820 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 17:49:39,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:39,002 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:39,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:39,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1081994433, now seen corresponding path program 1 times [2022-10-16 17:49:39,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:39,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087624244] [2022-10-16 17:49:39,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:39,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:39,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:39,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087624244] [2022-10-16 17:49:39,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087624244] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:39,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490159362] [2022-10-16 17:49:39,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:39,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:39,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:39,105 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 17:49:39,117 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 17:49:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:39,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:49:39,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:39,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:39,493 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:39,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490159362] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:39,493 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:39,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-16 17:49:39,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905165771] [2022-10-16 17:49:39,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:39,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:49:39,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:49:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:49:39,496 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 16 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:39,706 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2022-10-16 17:49:39,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:49:39,707 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 16 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 17:49:39,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:39,708 INFO L225 Difference]: With dead ends: 80 [2022-10-16 17:49:39,708 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 17:49:39,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:49:39,710 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 118 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:39,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 21 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:39,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 17:49:39,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-10-16 17:49:39,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 77 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2022-10-16 17:49:39,729 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 44 [2022-10-16 17:49:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:39,730 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2022-10-16 17:49:39,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 16 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2022-10-16 17:49:39,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:49:39,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:39,731 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:39,767 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 17:49:39,944 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,SelfDestructingSolverStorable15 [2022-10-16 17:49:39,945 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1221024197, now seen corresponding path program 2 times [2022-10-16 17:49:39,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:39,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609631471] [2022-10-16 17:49:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:39,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:40,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:40,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609631471] [2022-10-16 17:49:40,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609631471] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:40,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637642994] [2022-10-16 17:49:40,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:40,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:40,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:40,053 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 17:49:40,057 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 17:49:40,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:40,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:40,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:49:40,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:40,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:49:40,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637642994] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:40,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:49:40,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-10-16 17:49:40,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275963475] [2022-10-16 17:49:40,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:40,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:49:40,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:40,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:49:40,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:49:40,302 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:40,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:40,397 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2022-10-16 17:49:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:49:40,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:49:40,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:40,398 INFO L225 Difference]: With dead ends: 78 [2022-10-16 17:49:40,399 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 17:49:40,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:49:40,404 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 25 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:40,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 18 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:40,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 17:49:40,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-10-16 17:49:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 68 states have (on average 1.161764705882353) internal successors, (79), 76 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2022-10-16 17:49:40,415 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 50 [2022-10-16 17:49:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:40,415 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2022-10-16 17:49:40,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2022-10-16 17:49:40,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 17:49:40,417 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:40,417 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:40,444 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 17:49:40,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 17:49:40,633 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:40,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash -802955485, now seen corresponding path program 2 times [2022-10-16 17:49:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:40,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590432823] [2022-10-16 17:49:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:40,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:40,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590432823] [2022-10-16 17:49:40,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590432823] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:40,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525485204] [2022-10-16 17:49:40,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:40,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:40,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:40,739 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 17:49:40,773 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 17:49:40,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:40,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:40,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:49:40,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:40,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:41,119 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:41,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525485204] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:41,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:41,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-16 17:49:41,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529522331] [2022-10-16 17:49:41,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:41,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:49:41,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:41,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:49:41,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:49:41,122 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:41,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:41,514 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2022-10-16 17:49:41,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:49:41,515 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-16 17:49:41,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:41,516 INFO L225 Difference]: With dead ends: 154 [2022-10-16 17:49:41,516 INFO L226 Difference]: Without dead ends: 152 [2022-10-16 17:49:41,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-10-16 17:49:41,518 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 184 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:41,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 24 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:49:41,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-10-16 17:49:41,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 125. [2022-10-16 17:49:41,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 116 states have (on average 1.3189655172413792) internal successors, (153), 124 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2022-10-16 17:49:41,528 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 51 [2022-10-16 17:49:41,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:41,528 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2022-10-16 17:49:41,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:41,529 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2022-10-16 17:49:41,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 17:49:41,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:41,529 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:41,563 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 17:49:41,743 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,SelfDestructingSolverStorable17 [2022-10-16 17:49:41,744 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:41,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1772116725, now seen corresponding path program 2 times [2022-10-16 17:49:41,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:41,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336055234] [2022-10-16 17:49:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:41,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:41,849 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:41,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:41,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336055234] [2022-10-16 17:49:41,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336055234] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:41,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501134949] [2022-10-16 17:49:41,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:41,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:41,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:41,851 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 17:49:41,865 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 17:49:41,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:41,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:41,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:49:41,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:42,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:49:42,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501134949] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:42,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:49:42,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-10-16 17:49:42,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614508343] [2022-10-16 17:49:42,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:42,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:49:42,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:42,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:49:42,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:49:42,119 INFO L87 Difference]: Start difference. First operand 125 states and 153 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:42,207 INFO L93 Difference]: Finished difference Result 125 states and 153 transitions. [2022-10-16 17:49:42,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:49:42,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 17:49:42,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:42,210 INFO L225 Difference]: With dead ends: 125 [2022-10-16 17:49:42,210 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 17:49:42,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:49:42,211 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 56 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:42,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 11 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 17:49:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-10-16 17:49:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 123 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:42,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 148 transitions. [2022-10-16 17:49:42,224 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 148 transitions. Word has length 56 [2022-10-16 17:49:42,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:42,225 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 148 transitions. [2022-10-16 17:49:42,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 148 transitions. [2022-10-16 17:49:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 17:49:42,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:42,226 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:42,262 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 17:49:42,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:42,440 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:42,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:42,441 INFO L85 PathProgramCache]: Analyzing trace with hash 898956457, now seen corresponding path program 2 times [2022-10-16 17:49:42,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:42,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276725771] [2022-10-16 17:49:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:42,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:42,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:42,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276725771] [2022-10-16 17:49:42,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276725771] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:42,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389537943] [2022-10-16 17:49:42,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:42,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:42,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:42,558 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 17:49:42,579 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 17:49:42,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:42,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:42,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:49:42,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:42,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:42,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389537943] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:42,941 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:42,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-16 17:49:42,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794246963] [2022-10-16 17:49:42,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:42,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:49:42,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:42,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:49:42,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:49:42,943 INFO L87 Difference]: Start difference. First operand 124 states and 148 transitions. Second operand has 16 states, 15 states have (on average 10.666666666666666) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:43,301 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2022-10-16 17:49:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:49:43,302 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.666666666666666) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 17:49:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:43,303 INFO L225 Difference]: With dead ends: 152 [2022-10-16 17:49:43,303 INFO L226 Difference]: Without dead ends: 150 [2022-10-16 17:49:43,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-10-16 17:49:43,304 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 154 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:43,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 28 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:43,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-10-16 17:49:43,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 130. [2022-10-16 17:49:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 122 states have (on average 1.2377049180327868) internal successors, (151), 129 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2022-10-16 17:49:43,315 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 57 [2022-10-16 17:49:43,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:43,315 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2022-10-16 17:49:43,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.666666666666666) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:43,316 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2022-10-16 17:49:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 17:49:43,316 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:43,316 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:43,351 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 17:49:43,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:43,532 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:43,533 INFO L85 PathProgramCache]: Analyzing trace with hash 875358829, now seen corresponding path program 2 times [2022-10-16 17:49:43,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:43,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560428242] [2022-10-16 17:49:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:43,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:43,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:43,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560428242] [2022-10-16 17:49:43,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560428242] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:43,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107268173] [2022-10-16 17:49:43,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:43,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:43,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:43,681 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 17:49:43,691 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 17:49:43,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:43,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:43,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:49:43,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:44,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:44,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107268173] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:44,280 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:44,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2022-10-16 17:49:44,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686634588] [2022-10-16 17:49:44,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:44,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:49:44,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:44,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:49:44,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:49:44,284 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand has 22 states, 21 states have (on average 8.428571428571429) internal successors, (177), 22 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:44,470 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2022-10-16 17:49:44,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:49:44,471 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.428571428571429) internal successors, (177), 22 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-10-16 17:49:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:44,472 INFO L225 Difference]: With dead ends: 130 [2022-10-16 17:49:44,472 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 17:49:44,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2022-10-16 17:49:44,474 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 132 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:44,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 27 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:44,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 17:49:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2022-10-16 17:49:44,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 128 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:44,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 146 transitions. [2022-10-16 17:49:44,484 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 146 transitions. Word has length 61 [2022-10-16 17:49:44,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:44,485 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 146 transitions. [2022-10-16 17:49:44,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.428571428571429) internal successors, (177), 22 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:44,485 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 146 transitions. [2022-10-16 17:49:44,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 17:49:44,486 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:44,486 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:44,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-16 17:49:44,699 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,SelfDestructingSolverStorable20 [2022-10-16 17:49:44,700 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:44,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:44,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1366319991, now seen corresponding path program 2 times [2022-10-16 17:49:44,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:44,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016499299] [2022-10-16 17:49:44,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:44,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:44,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:44,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016499299] [2022-10-16 17:49:44,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016499299] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:44,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410693783] [2022-10-16 17:49:44,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:44,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:44,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:44,864 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 17:49:44,883 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 17:49:44,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:44,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:44,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:49:44,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:45,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:45,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410693783] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:45,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:45,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2022-10-16 17:49:45,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39121912] [2022-10-16 17:49:45,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:45,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:49:45,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:45,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:49:45,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:49:45,485 INFO L87 Difference]: Start difference. First operand 129 states and 146 transitions. Second operand has 22 states, 21 states have (on average 8.571428571428571) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:45,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:46,000 INFO L93 Difference]: Finished difference Result 149 states and 153 transitions. [2022-10-16 17:49:46,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 17:49:46,004 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.571428571428571) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-16 17:49:46,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:46,005 INFO L225 Difference]: With dead ends: 149 [2022-10-16 17:49:46,005 INFO L226 Difference]: Without dead ends: 148 [2022-10-16 17:49:46,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=261, Invalid=609, Unknown=0, NotChecked=0, Total=870 [2022-10-16 17:49:46,008 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 281 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:46,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 31 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:49:46,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-16 17:49:46,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 134. [2022-10-16 17:49:46,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 127 states have (on average 1.1653543307086613) internal successors, (148), 133 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:46,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 148 transitions. [2022-10-16 17:49:46,020 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 148 transitions. Word has length 62 [2022-10-16 17:49:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:46,020 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 148 transitions. [2022-10-16 17:49:46,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.571428571428571) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 148 transitions. [2022-10-16 17:49:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 17:49:46,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:46,028 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:46,065 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 17:49:46,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:46,241 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:46,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:46,242 INFO L85 PathProgramCache]: Analyzing trace with hash -748521933, now seen corresponding path program 2 times [2022-10-16 17:49:46,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:46,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148729487] [2022-10-16 17:49:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:46,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:46,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148729487] [2022-10-16 17:49:46,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148729487] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232672205] [2022-10-16 17:49:46,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:46,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:46,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:46,406 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 17:49:46,429 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 17:49:46,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:46,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:46,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:49:46,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 78 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:46,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:47,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232672205] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:47,074 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:47,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2022-10-16 17:49:47,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564033391] [2022-10-16 17:49:47,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:47,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:49:47,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:47,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:49:47,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:49:47,078 INFO L87 Difference]: Start difference. First operand 134 states and 148 transitions. Second operand has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:47,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:47,304 INFO L93 Difference]: Finished difference Result 134 states and 148 transitions. [2022-10-16 17:49:47,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:49:47,305 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-16 17:49:47,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:47,307 INFO L225 Difference]: With dead ends: 134 [2022-10-16 17:49:47,307 INFO L226 Difference]: Without dead ends: 133 [2022-10-16 17:49:47,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2022-10-16 17:49:47,313 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 92 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:47,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 33 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:47,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-16 17:49:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-10-16 17:49:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 127 states have (on average 1.125984251968504) internal successors, (143), 132 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 143 transitions. [2022-10-16 17:49:47,327 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 143 transitions. Word has length 67 [2022-10-16 17:49:47,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:47,327 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 143 transitions. [2022-10-16 17:49:47,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:47,328 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 143 transitions. [2022-10-16 17:49:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 17:49:47,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:47,329 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:47,365 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 17:49:47,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:47,543 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:47,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:47,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1729343363, now seen corresponding path program 2 times [2022-10-16 17:49:47,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:47,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838926500] [2022-10-16 17:49:47,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:47,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:47,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:47,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838926500] [2022-10-16 17:49:47,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838926500] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:47,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585948821] [2022-10-16 17:49:47,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:47,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:47,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:47,721 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 17:49:47,733 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 17:49:47,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:47,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:47,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:49:47,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:48,193 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:48,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:48,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585948821] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:48,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:48,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2022-10-16 17:49:48,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555842206] [2022-10-16 17:49:48,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:48,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:49:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:48,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:49:48,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:49:48,391 INFO L87 Difference]: Start difference. First operand 133 states and 143 transitions. Second operand has 22 states, 21 states have (on average 9.333333333333334) internal successors, (196), 22 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:48,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:48,834 INFO L93 Difference]: Finished difference Result 148 states and 152 transitions. [2022-10-16 17:49:48,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 17:49:48,834 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.333333333333334) internal successors, (196), 22 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-10-16 17:49:48,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:48,836 INFO L225 Difference]: With dead ends: 148 [2022-10-16 17:49:48,836 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 17:49:48,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=261, Invalid=609, Unknown=0, NotChecked=0, Total=870 [2022-10-16 17:49:48,837 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 263 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:48,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 29 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:49:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 17:49:48,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 139. [2022-10-16 17:49:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 133 states have (on average 1.105263157894737) internal successors, (147), 138 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 147 transitions. [2022-10-16 17:49:48,850 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 147 transitions. Word has length 68 [2022-10-16 17:49:48,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:48,850 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 147 transitions. [2022-10-16 17:49:48,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.333333333333334) internal successors, (196), 22 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 147 transitions. [2022-10-16 17:49:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-16 17:49:48,851 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:48,851 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:48,889 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 17:49:49,066 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,SelfDestructingSolverStorable23 [2022-10-16 17:49:49,067 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:49,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:49,068 INFO L85 PathProgramCache]: Analyzing trace with hash 751589221, now seen corresponding path program 1 times [2022-10-16 17:49:49,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:49,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072106826] [2022-10-16 17:49:49,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:49,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:49,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:49,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072106826] [2022-10-16 17:49:49,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072106826] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:49,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452128995] [2022-10-16 17:49:49,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:49,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:49,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:49,215 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 17:49:49,221 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 17:49:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:49,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:49:49,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:49,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:49,791 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:49,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452128995] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:49,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:49,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2022-10-16 17:49:49,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836705496] [2022-10-16 17:49:49,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:49,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:49:49,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:49:49,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:49:49,795 INFO L87 Difference]: Start difference. First operand 139 states and 147 transitions. Second operand has 22 states, 21 states have (on average 10.80952380952381) internal successors, (227), 22 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:50,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:50,380 INFO L93 Difference]: Finished difference Result 192 states and 201 transitions. [2022-10-16 17:49:50,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:49:50,380 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.80952380952381) internal successors, (227), 22 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-16 17:49:50,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:50,382 INFO L225 Difference]: With dead ends: 192 [2022-10-16 17:49:50,382 INFO L226 Difference]: Without dead ends: 190 [2022-10-16 17:49:50,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=688, Unknown=0, NotChecked=0, Total=992 [2022-10-16 17:49:50,383 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 159 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:50,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 30 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:49:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-10-16 17:49:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 176. [2022-10-16 17:49:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 170 states have (on average 1.1176470588235294) internal successors, (190), 175 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 190 transitions. [2022-10-16 17:49:50,398 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 190 transitions. Word has length 79 [2022-10-16 17:49:50,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:50,398 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 190 transitions. [2022-10-16 17:49:50,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.80952380952381) internal successors, (227), 22 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:50,399 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 190 transitions. [2022-10-16 17:49:50,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 17:49:50,399 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:50,400 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:50,432 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 17:49:50,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:50,614 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:50,615 INFO L85 PathProgramCache]: Analyzing trace with hash 174873835, now seen corresponding path program 1 times [2022-10-16 17:49:50,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:50,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979830281] [2022-10-16 17:49:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:50,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:50,763 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:50,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:50,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979830281] [2022-10-16 17:49:50,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979830281] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:50,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698665758] [2022-10-16 17:49:50,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:50,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:50,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:50,765 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 17:49:50,788 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 17:49:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:50,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:49:50,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:51,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:51,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698665758] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:51,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:51,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2022-10-16 17:49:51,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399805567] [2022-10-16 17:49:51,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:51,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:49:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:49:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:49:51,422 INFO L87 Difference]: Start difference. First operand 176 states and 190 transitions. Second operand has 22 states, 21 states have (on average 11.619047619047619) internal successors, (244), 22 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:51,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:51,997 INFO L93 Difference]: Finished difference Result 190 states and 199 transitions. [2022-10-16 17:49:51,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:49:51,998 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 11.619047619047619) internal successors, (244), 22 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-10-16 17:49:51,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:52,000 INFO L225 Difference]: With dead ends: 190 [2022-10-16 17:49:52,000 INFO L226 Difference]: Without dead ends: 188 [2022-10-16 17:49:52,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=688, Unknown=0, NotChecked=0, Total=992 [2022-10-16 17:49:52,002 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 109 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:52,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 35 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:49:52,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-10-16 17:49:52,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2022-10-16 17:49:52,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 176 states have (on average 1.0681818181818181) internal successors, (188), 181 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:52,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 188 transitions. [2022-10-16 17:49:52,017 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 188 transitions. Word has length 85 [2022-10-16 17:49:52,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:52,017 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 188 transitions. [2022-10-16 17:49:52,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 11.619047619047619) internal successors, (244), 22 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:52,018 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 188 transitions. [2022-10-16 17:49:52,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 17:49:52,019 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:52,019 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:52,044 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 17:49:52,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:52,233 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:52,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash -399438367, now seen corresponding path program 3 times [2022-10-16 17:49:52,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:52,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150612358] [2022-10-16 17:49:52,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:52,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:52,547 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:52,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:52,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150612358] [2022-10-16 17:49:52,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150612358] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:52,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293228078] [2022-10-16 17:49:52,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:49:52,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:52,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:52,549 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 17:49:52,550 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 17:49:52,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-10-16 17:49:52,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:52,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 17:49:52,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:53,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:54,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293228078] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:54,034 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:54,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2022-10-16 17:49:54,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289914310] [2022-10-16 17:49:54,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:54,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 17:49:54,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:54,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 17:49:54,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1051, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 17:49:54,037 INFO L87 Difference]: Start difference. First operand 182 states and 188 transitions. Second operand has 37 states, 36 states have (on average 10.416666666666666) internal successors, (375), 37 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:55,310 INFO L93 Difference]: Finished difference Result 297 states and 306 transitions. [2022-10-16 17:49:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 17:49:55,311 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 10.416666666666666) internal successors, (375), 37 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-10-16 17:49:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:55,313 INFO L225 Difference]: With dead ends: 297 [2022-10-16 17:49:55,313 INFO L226 Difference]: Without dead ends: 296 [2022-10-16 17:49:55,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=851, Invalid=2119, Unknown=0, NotChecked=0, Total=2970 [2022-10-16 17:49:55,315 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 870 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:55,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 42 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 17:49:55,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-10-16 17:49:55,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 263. [2022-10-16 17:49:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 257 states have (on average 1.1517509727626458) internal successors, (296), 262 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 296 transitions. [2022-10-16 17:49:55,337 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 296 transitions. Word has length 127 [2022-10-16 17:49:55,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:55,337 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 296 transitions. [2022-10-16 17:49:55,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 10.416666666666666) internal successors, (375), 37 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 296 transitions. [2022-10-16 17:49:55,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 17:49:55,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:55,339 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:55,374 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 17:49:55,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:55,553 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:55,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:55,554 INFO L85 PathProgramCache]: Analyzing trace with hash -363199641, now seen corresponding path program 3 times [2022-10-16 17:49:55,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:55,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750931663] [2022-10-16 17:49:55,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:55,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:55,888 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:55,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:55,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750931663] [2022-10-16 17:49:55,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750931663] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:55,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097188085] [2022-10-16 17:49:55,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:49:55,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:55,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:55,890 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 17:49:55,894 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 17:49:55,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-10-16 17:49:55,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:55,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 17:49:55,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:56,862 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:56,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:57,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097188085] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:57,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:57,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2022-10-16 17:49:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903904175] [2022-10-16 17:49:57,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:57,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 17:49:57,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:57,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 17:49:57,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=1123, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 17:49:57,376 INFO L87 Difference]: Start difference. First operand 263 states and 296 transitions. Second operand has 38 states, 37 states have (on average 10.675675675675675) internal successors, (395), 38 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:58,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:58,825 INFO L93 Difference]: Finished difference Result 296 states and 305 transitions. [2022-10-16 17:49:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 17:49:58,826 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 10.675675675675675) internal successors, (395), 38 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-10-16 17:49:58,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:58,828 INFO L225 Difference]: With dead ends: 296 [2022-10-16 17:49:58,829 INFO L226 Difference]: Without dead ends: 295 [2022-10-16 17:49:58,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=916, Invalid=2390, Unknown=0, NotChecked=0, Total=3306 [2022-10-16 17:49:58,831 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 863 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:58,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 50 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 17:49:58,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-10-16 17:49:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 269. [2022-10-16 17:49:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 263 states have (on average 1.1216730038022813) internal successors, (295), 268 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 295 transitions. [2022-10-16 17:49:58,852 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 295 transitions. Word has length 133 [2022-10-16 17:49:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:58,853 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 295 transitions. [2022-10-16 17:49:58,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 10.675675675675675) internal successors, (395), 38 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 295 transitions. [2022-10-16 17:49:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-10-16 17:49:58,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:58,855 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:58,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-10-16 17:49:59,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 17:49:59,070 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:49:59,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash -369460359, now seen corresponding path program 3 times [2022-10-16 17:49:59,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:59,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271572559] [2022-10-16 17:49:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:59,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:59,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:59,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271572559] [2022-10-16 17:49:59,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271572559] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:59,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546431005] [2022-10-16 17:49:59,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:49:59,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:59,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:59,509 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:49:59,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 17:49:59,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 17:49:59,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:59,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:49:59,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:59,809 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 17:49:59,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:49:59,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546431005] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:59,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:49:59,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 17 [2022-10-16 17:49:59,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147421127] [2022-10-16 17:49:59,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:59,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:49:59,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:49:59,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:49:59,812 INFO L87 Difference]: Start difference. First operand 269 states and 295 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:59,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:59,852 INFO L93 Difference]: Finished difference Result 269 states and 295 transitions. [2022-10-16 17:49:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:49:59,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2022-10-16 17:49:59,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:59,854 INFO L225 Difference]: With dead ends: 269 [2022-10-16 17:49:59,854 INFO L226 Difference]: Without dead ends: 268 [2022-10-16 17:49:59,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:49:59,856 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:59,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:49:59,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-10-16 17:49:59,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2022-10-16 17:49:59,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.091254752851711) internal successors, (287), 267 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:59,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 287 transitions. [2022-10-16 17:49:59,878 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 287 transitions. Word has length 168 [2022-10-16 17:49:59,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:59,878 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 287 transitions. [2022-10-16 17:49:59,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:59,878 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 287 transitions. [2022-10-16 17:49:59,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-16 17:49:59,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:59,880 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:59,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-10-16 17:50:00,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 17:50:00,096 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:50:00,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1430882939, now seen corresponding path program 2 times [2022-10-16 17:50:00,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:00,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510878838] [2022-10-16 17:50:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:00,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 942 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:00,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:00,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510878838] [2022-10-16 17:50:00,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510878838] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:00,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039858246] [2022-10-16 17:50:00,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:50:00,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:00,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:00,522 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:00,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 17:50:00,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:50:00,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:00,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:50:00,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 942 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:01,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:02,363 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 942 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:02,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039858246] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:02,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:02,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 42 [2022-10-16 17:50:02,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045456338] [2022-10-16 17:50:02,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:02,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-10-16 17:50:02,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:02,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-10-16 17:50:02,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=1435, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 17:50:02,367 INFO L87 Difference]: Start difference. First operand 268 states and 287 transitions. Second operand has 43 states, 42 states have (on average 11.904761904761905) internal successors, (500), 43 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:04,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:04,272 INFO L93 Difference]: Finished difference Result 397 states and 410 transitions. [2022-10-16 17:50:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 17:50:04,272 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 11.904761904761905) internal successors, (500), 43 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2022-10-16 17:50:04,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:04,276 INFO L225 Difference]: With dead ends: 397 [2022-10-16 17:50:04,276 INFO L226 Difference]: Without dead ends: 396 [2022-10-16 17:50:04,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1291, Invalid=3131, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 17:50:04,279 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 474 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:04,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 54 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 17:50:04,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-10-16 17:50:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 357. [2022-10-16 17:50:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 352 states have (on average 1.125) internal successors, (396), 356 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 396 transitions. [2022-10-16 17:50:04,309 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 396 transitions. Word has length 170 [2022-10-16 17:50:04,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:04,309 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 396 transitions. [2022-10-16 17:50:04,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 11.904761904761905) internal successors, (500), 43 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:04,310 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 396 transitions. [2022-10-16 17:50:04,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 17:50:04,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:04,311 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:04,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:04,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:04,527 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:50:04,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:04,528 INFO L85 PathProgramCache]: Analyzing trace with hash 677281919, now seen corresponding path program 3 times [2022-10-16 17:50:04,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:04,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037498163] [2022-10-16 17:50:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:04,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:04,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:04,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037498163] [2022-10-16 17:50:04,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037498163] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:04,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185889693] [2022-10-16 17:50:04,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:50:04,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:04,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:04,995 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:05,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 17:50:05,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 17:50:05,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:05,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:50:05,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2022-10-16 17:50:05,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:50:05,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185889693] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:50:05,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:50:05,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 17 [2022-10-16 17:50:05,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229443477] [2022-10-16 17:50:05,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:50:05,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:50:05,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:50:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:50:05,289 INFO L87 Difference]: Start difference. First operand 357 states and 396 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:05,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:05,346 INFO L93 Difference]: Finished difference Result 357 states and 396 transitions. [2022-10-16 17:50:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:50:05,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2022-10-16 17:50:05,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:05,349 INFO L225 Difference]: With dead ends: 357 [2022-10-16 17:50:05,349 INFO L226 Difference]: Without dead ends: 356 [2022-10-16 17:50:05,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:50:05,350 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:05,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:50:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-10-16 17:50:05,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-10-16 17:50:05,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 352 states have (on average 1.0852272727272727) internal successors, (382), 355 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 382 transitions. [2022-10-16 17:50:05,378 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 382 transitions. Word has length 174 [2022-10-16 17:50:05,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:05,379 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 382 transitions. [2022-10-16 17:50:05,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:05,379 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 382 transitions. [2022-10-16 17:50:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 17:50:05,381 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:05,381 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:05,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 17:50:05,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:05,595 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:50:05,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:05,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1967102079, now seen corresponding path program 2 times [2022-10-16 17:50:05,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:05,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509005720] [2022-10-16 17:50:05,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:05,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:06,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 0 proven. 1014 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:06,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:06,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509005720] [2022-10-16 17:50:06,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509005720] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:06,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894182593] [2022-10-16 17:50:06,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:50:06,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:06,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:06,075 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:06,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 17:50:06,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:50:06,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:06,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:50:06,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 0 proven. 1014 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:07,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:07,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 0 proven. 1014 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:07,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894182593] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:07,785 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:07,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 42 [2022-10-16 17:50:07,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814440255] [2022-10-16 17:50:07,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:07,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-10-16 17:50:07,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:07,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-10-16 17:50:07,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=1435, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 17:50:07,788 INFO L87 Difference]: Start difference. First operand 356 states and 382 transitions. Second operand has 43 states, 42 states have (on average 12.30952380952381) internal successors, (517), 43 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:09,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:09,630 INFO L93 Difference]: Finished difference Result 377 states and 390 transitions. [2022-10-16 17:50:09,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 17:50:09,631 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 12.30952380952381) internal successors, (517), 43 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-10-16 17:50:09,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:09,633 INFO L225 Difference]: With dead ends: 377 [2022-10-16 17:50:09,633 INFO L226 Difference]: Without dead ends: 376 [2022-10-16 17:50:09,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1291, Invalid=3131, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 17:50:09,636 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 225 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:09,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 59 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 17:50:09,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-10-16 17:50:09,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 362. [2022-10-16 17:50:09,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 358 states have (on average 1.0502793296089385) internal successors, (376), 361 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:09,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 376 transitions. [2022-10-16 17:50:09,666 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 376 transitions. Word has length 176 [2022-10-16 17:50:09,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:09,666 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 376 transitions. [2022-10-16 17:50:09,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 12.30952380952381) internal successors, (517), 43 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:09,667 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 376 transitions. [2022-10-16 17:50:09,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-10-16 17:50:09,670 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:09,670 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:09,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:09,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:09,884 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:50:09,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:09,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1423644833, now seen corresponding path program 4 times [2022-10-16 17:50:09,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:09,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112784425] [2022-10-16 17:50:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:09,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:10,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:10,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:10,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112784425] [2022-10-16 17:50:10,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112784425] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:10,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886008900] [2022-10-16 17:50:10,840 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:50:10,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:10,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:10,841 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:10,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 17:50:10,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:50:10,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:10,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 17:50:10,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:13,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:14,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886008900] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:14,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:14,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 67 [2022-10-16 17:50:14,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364666723] [2022-10-16 17:50:14,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:14,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-16 17:50:14,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:14,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-16 17:50:14,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=848, Invalid=3708, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 17:50:14,539 INFO L87 Difference]: Start difference. First operand 362 states and 376 transitions. Second operand has 68 states, 67 states have (on average 11.432835820895523) internal successors, (766), 68 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:19,178 INFO L93 Difference]: Finished difference Result 565 states and 584 transitions. [2022-10-16 17:50:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-10-16 17:50:19,179 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 11.432835820895523) internal successors, (766), 68 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2022-10-16 17:50:19,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:19,186 INFO L225 Difference]: With dead ends: 565 [2022-10-16 17:50:19,186 INFO L226 Difference]: Without dead ends: 564 [2022-10-16 17:50:19,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2849 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=3206, Invalid=8350, Unknown=0, NotChecked=0, Total=11556 [2022-10-16 17:50:19,190 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2520 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:19,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 73 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 17:50:19,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-10-16 17:50:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 521. [2022-10-16 17:50:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 517 states have (on average 1.0909090909090908) internal successors, (564), 520 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 564 transitions. [2022-10-16 17:50:19,231 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 564 transitions. Word has length 257 [2022-10-16 17:50:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:19,232 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 564 transitions. [2022-10-16 17:50:19,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 11.432835820895523) internal successors, (766), 68 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 564 transitions. [2022-10-16 17:50:19,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-10-16 17:50:19,235 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:19,236 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:19,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:19,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 17:50:19,451 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:50:19,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:19,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1518403111, now seen corresponding path program 4 times [2022-10-16 17:50:19,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:19,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19888559] [2022-10-16 17:50:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:19,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2394 backedges. 0 proven. 2394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:20,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:20,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19888559] [2022-10-16 17:50:20,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19888559] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:20,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531960543] [2022-10-16 17:50:20,378 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:50:20,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:20,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:20,380 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:20,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 17:50:20,460 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:50:20,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:20,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 17:50:20,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2394 backedges. 0 proven. 2394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:22,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2394 backedges. 0 proven. 2394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:23,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531960543] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:23,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:23,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 66 [2022-10-16 17:50:23,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703890117] [2022-10-16 17:50:23,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:23,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 17:50:23,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:23,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 17:50:23,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=836, Invalid=3586, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 17:50:23,999 INFO L87 Difference]: Start difference. First operand 521 states and 564 transitions. Second operand has 67 states, 66 states have (on average 11.833333333333334) internal successors, (781), 67 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:28,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:28,578 INFO L93 Difference]: Finished difference Result 553 states and 572 transitions. [2022-10-16 17:50:28,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 17:50:28,579 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 11.833333333333334) internal successors, (781), 67 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-10-16 17:50:28,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:28,582 INFO L225 Difference]: With dead ends: 553 [2022-10-16 17:50:28,583 INFO L226 Difference]: Without dead ends: 552 [2022-10-16 17:50:28,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2872 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=3081, Invalid=7839, Unknown=0, NotChecked=0, Total=10920 [2022-10-16 17:50:28,587 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1015 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:28,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 85 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 17:50:28,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-10-16 17:50:28,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 527. [2022-10-16 17:50:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 523 states have (on average 1.0554493307839388) internal successors, (552), 526 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:28,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 552 transitions. [2022-10-16 17:50:28,644 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 552 transitions. Word has length 263 [2022-10-16 17:50:28,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:28,644 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 552 transitions. [2022-10-16 17:50:28,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 11.833333333333334) internal successors, (781), 67 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:28,645 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 552 transitions. [2022-10-16 17:50:28,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-10-16 17:50:28,647 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:28,647 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:28,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:28,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-10-16 17:50:28,860 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:50:28,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash 352694331, now seen corresponding path program 3 times [2022-10-16 17:50:28,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:28,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190840096] [2022-10-16 17:50:28,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:28,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:30,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4407 backedges. 0 proven. 4407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:30,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:30,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190840096] [2022-10-16 17:50:30,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190840096] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:30,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185248154] [2022-10-16 17:50:30,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:50:30,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:30,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:30,429 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:30,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 17:50:30,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2022-10-16 17:50:30,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:30,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 17:50:30,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4407 backedges. 0 proven. 4407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:33,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4407 backedges. 0 proven. 4407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:35,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185248154] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:35,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:35,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 84 [2022-10-16 17:50:35,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520185942] [2022-10-16 17:50:35,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:35,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-10-16 17:50:35,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:35,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-10-16 17:50:35,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1330, Invalid=5810, Unknown=0, NotChecked=0, Total=7140 [2022-10-16 17:50:35,387 INFO L87 Difference]: Start difference. First operand 527 states and 552 transitions. Second operand has 85 states, 84 states have (on average 12.452380952380953) internal successors, (1046), 85 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:43,049 INFO L93 Difference]: Finished difference Result 777 states and 804 transitions. [2022-10-16 17:50:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-10-16 17:50:43,050 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 12.452380952380953) internal successors, (1046), 85 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 352 [2022-10-16 17:50:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:43,065 INFO L225 Difference]: With dead ends: 777 [2022-10-16 17:50:43,065 INFO L226 Difference]: Without dead ends: 776 [2022-10-16 17:50:43,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4893 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=5323, Invalid=13309, Unknown=0, NotChecked=0, Total=18632 [2022-10-16 17:50:43,067 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1103 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:43,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 85 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 17:50:43,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-10-16 17:50:43,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 720. [2022-10-16 17:50:43,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 716 states have (on average 1.0837988826815643) internal successors, (776), 719 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:43,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 776 transitions. [2022-10-16 17:50:43,124 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 776 transitions. Word has length 352 [2022-10-16 17:50:43,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:43,125 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 776 transitions. [2022-10-16 17:50:43,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 84 states have (on average 12.452380952380953) internal successors, (1046), 85 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 776 transitions. [2022-10-16 17:50:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-10-16 17:50:43,128 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:43,128 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 26, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:43,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-10-16 17:50:43,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 17:50:43,342 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:50:43,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:43,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2135343807, now seen corresponding path program 3 times [2022-10-16 17:50:43,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:43,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620924513] [2022-10-16 17:50:43,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:43,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:44,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:44,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:44,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620924513] [2022-10-16 17:50:44,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620924513] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:44,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441499645] [2022-10-16 17:50:44,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:50:44,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:44,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:44,748 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:44,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 17:50:44,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2022-10-16 17:50:44,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:44,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 17:50:44,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:47,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:47,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:49,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:49,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441499645] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:49,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:49,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 84 [2022-10-16 17:50:49,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353136455] [2022-10-16 17:50:49,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:49,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-10-16 17:50:49,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:49,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-10-16 17:50:49,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1330, Invalid=5810, Unknown=0, NotChecked=0, Total=7140 [2022-10-16 17:50:49,691 INFO L87 Difference]: Start difference. First operand 720 states and 776 transitions. Second operand has 85 states, 84 states have (on average 12.654761904761905) internal successors, (1063), 85 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:57,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:57,521 INFO L93 Difference]: Finished difference Result 757 states and 784 transitions. [2022-10-16 17:50:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-10-16 17:50:57,522 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 12.654761904761905) internal successors, (1063), 85 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 358 [2022-10-16 17:50:57,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:57,526 INFO L225 Difference]: With dead ends: 757 [2022-10-16 17:50:57,527 INFO L226 Difference]: Without dead ends: 756 [2022-10-16 17:50:57,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4893 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=5323, Invalid=13309, Unknown=0, NotChecked=0, Total=18632 [2022-10-16 17:50:57,529 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 589 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:57,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 102 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 17:50:57,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-10-16 17:50:57,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 726. [2022-10-16 17:50:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 722 states have (on average 1.0470914127423823) internal successors, (756), 725 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:57,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 756 transitions. [2022-10-16 17:50:57,584 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 756 transitions. Word has length 358 [2022-10-16 17:50:57,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:57,584 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 756 transitions. [2022-10-16 17:50:57,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 84 states have (on average 12.654761904761905) internal successors, (1063), 85 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:57,585 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 756 transitions. [2022-10-16 17:50:57,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-10-16 17:50:57,588 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:57,588 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:57,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:57,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:57,800 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:50:57,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:57,802 INFO L85 PathProgramCache]: Analyzing trace with hash -485482975, now seen corresponding path program 5 times [2022-10-16 17:50:57,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:57,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491996038] [2022-10-16 17:50:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:57,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:51:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 9750 backedges. 0 proven. 9750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:01,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:51:01,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491996038] [2022-10-16 17:51:01,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491996038] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:51:01,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356975992] [2022-10-16 17:51:01,289 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:51:01,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:51:01,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:51:01,290 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:51:01,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 17:51:01,468 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 40 check-sat command(s) [2022-10-16 17:51:01,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:51:01,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 17:51:01,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:51:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 9750 backedges. 0 proven. 9750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:07,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:51:11,546 INFO L134 CoverageAnalysis]: Checked inductivity of 9750 backedges. 0 proven. 9750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:11,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356975992] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:51:11,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:51:11,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 126 [2022-10-16 17:51:11,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935012816] [2022-10-16 17:51:11,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:51:11,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-10-16 17:51:11,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:51:11,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-10-16 17:51:11,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2846, Invalid=13156, Unknown=0, NotChecked=0, Total=16002 [2022-10-16 17:51:11,552 INFO L87 Difference]: Start difference. First operand 726 states and 756 transitions. Second operand has 127 states, 126 states have (on average 12.261904761904763) internal successors, (1545), 127 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:51:30,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:51:30,879 INFO L93 Difference]: Finished difference Result 1129 states and 1168 transitions. [2022-10-16 17:51:30,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-10-16 17:51:30,880 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 126 states have (on average 12.261904761904763) internal successors, (1545), 127 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 517 [2022-10-16 17:51:30,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:51:30,886 INFO L225 Difference]: With dead ends: 1129 [2022-10-16 17:51:30,887 INFO L226 Difference]: Without dead ends: 1128 [2022-10-16 17:51:30,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1153 GetRequests, 950 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11332 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=11741, Invalid=30079, Unknown=0, NotChecked=0, Total=41820 [2022-10-16 17:51:30,890 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4220 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:51:30,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 130 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 17:51:30,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-10-16 17:51:30,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1041. [2022-10-16 17:51:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1037 states have (on average 1.0877531340405016) internal successors, (1128), 1040 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:51:30,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1128 transitions. [2022-10-16 17:51:30,970 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1128 transitions. Word has length 517 [2022-10-16 17:51:30,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:51:30,971 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1128 transitions. [2022-10-16 17:51:30,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 126 states have (on average 12.261904761904763) internal successors, (1545), 127 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:51:30,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1128 transitions. [2022-10-16 17:51:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2022-10-16 17:51:30,975 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:51:30,975 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:51:31,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-10-16 17:51:31,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 17:51:31,190 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:51:31,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:51:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1623465049, now seen corresponding path program 5 times [2022-10-16 17:51:31,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:51:31,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245856482] [2022-10-16 17:51:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:51:31,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:51:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:51:34,573 INFO L134 CoverageAnalysis]: Checked inductivity of 9984 backedges. 0 proven. 9984 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:34,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:51:34,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245856482] [2022-10-16 17:51:34,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245856482] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:51:34,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864902602] [2022-10-16 17:51:34,576 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:51:34,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:51:34,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:51:34,577 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:51:34,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 17:51:34,762 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 40 check-sat command(s) [2022-10-16 17:51:34,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:51:34,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 17:51:34,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:51:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 9984 backedges. 0 proven. 9984 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:40,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:51:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 9984 backedges. 0 proven. 9984 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:45,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864902602] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:51:45,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:51:45,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 127 [2022-10-16 17:51:45,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023371315] [2022-10-16 17:51:45,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:51:45,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-10-16 17:51:45,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:51:45,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-10-16 17:51:45,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2878, Invalid=13378, Unknown=0, NotChecked=0, Total=16256 [2022-10-16 17:51:45,494 INFO L87 Difference]: Start difference. First operand 1041 states and 1128 transitions. Second operand has 128 states, 127 states have (on average 12.32283464566929) internal successors, (1565), 128 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:52:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:52:06,244 INFO L93 Difference]: Finished difference Result 1097 states and 1136 transitions. [2022-10-16 17:52:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-10-16 17:52:06,245 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 12.32283464566929) internal successors, (1565), 128 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 523 [2022-10-16 17:52:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:52:06,249 INFO L225 Difference]: With dead ends: 1097 [2022-10-16 17:52:06,249 INFO L226 Difference]: Without dead ends: 1096 [2022-10-16 17:52:06,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1167 GetRequests, 961 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11289 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=11986, Invalid=31070, Unknown=0, NotChecked=0, Total=43056 [2022-10-16 17:52:06,252 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3505 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3505 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:52:06,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3505 Valid, 143 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 17:52:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-10-16 17:52:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1047. [2022-10-16 17:52:06,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1043 states have (on average 1.0508149568552254) internal successors, (1096), 1046 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:52:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1096 transitions. [2022-10-16 17:52:06,332 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1096 transitions. Word has length 523 [2022-10-16 17:52:06,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:52:06,333 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1096 transitions. [2022-10-16 17:52:06,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 12.32283464566929) internal successors, (1565), 128 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:52:06,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1096 transitions. [2022-10-16 17:52:06,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2022-10-16 17:52:06,357 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:52:06,358 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:52:06,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-10-16 17:52:06,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 17:52:06,571 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:52:06,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:52:06,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1151562821, now seen corresponding path program 4 times [2022-10-16 17:52:06,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:52:06,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033443129] [2022-10-16 17:52:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:52:06,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:52:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:52:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 18981 backedges. 0 proven. 18981 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:52:12,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:52:12,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033443129] [2022-10-16 17:52:12,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033443129] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:52:12,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995132293] [2022-10-16 17:52:12,086 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:52:12,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:52:12,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:52:12,087 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:52:12,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 17:52:12,258 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:52:12,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:52:12,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 57 conjunts are in the unsatisfiable core [2022-10-16 17:52:12,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:52:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18981 backedges. 0 proven. 18981 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:52:20,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:52:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18981 backedges. 0 proven. 18981 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:52:27,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995132293] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:52:27,732 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:52:27,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2022-10-16 17:52:27,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755445301] [2022-10-16 17:52:27,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:52:27,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2022-10-16 17:52:27,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:52:27,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2022-10-16 17:52:27,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5012, Invalid=23380, Unknown=0, NotChecked=0, Total=28392 [2022-10-16 17:52:27,739 INFO L87 Difference]: Start difference. First operand 1047 states and 1096 transitions. Second operand has 169 states, 168 states have (on average 12.726190476190476) internal successors, (2138), 169 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:53:06,843 INFO L93 Difference]: Finished difference Result 1565 states and 1620 transitions. [2022-10-16 17:53:06,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-10-16 17:53:06,844 INFO L78 Accepts]: Start accepts. Automaton has has 169 states, 168 states have (on average 12.726190476190476) internal successors, (2138), 169 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 716 [2022-10-16 17:53:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:53:06,849 INFO L225 Difference]: With dead ends: 1565 [2022-10-16 17:53:06,849 INFO L226 Difference]: Without dead ends: 1564 [2022-10-16 17:53:06,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1595 GetRequests, 1320 SyntacticMatches, 0 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20741 ImplicationChecksByTransitivity, 49.8s TimeCoverageRelationStatistics Valid=21619, Invalid=54833, Unknown=0, NotChecked=0, Total=76452 [2022-10-16 17:53:06,854 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3505 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 2597 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3505 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 2766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 2597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:53:06,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3505 Valid, 167 Invalid, 2766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 2597 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 17:53:06,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-10-16 17:53:06,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1448. [2022-10-16 17:53:06,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1444 states have (on average 1.0831024930747923) internal successors, (1564), 1447 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:06,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1564 transitions. [2022-10-16 17:53:06,967 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1564 transitions. Word has length 716 [2022-10-16 17:53:06,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:53:06,969 INFO L495 AbstractCegarLoop]: Abstraction has 1448 states and 1564 transitions. [2022-10-16 17:53:06,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 168 states have (on average 12.726190476190476) internal successors, (2138), 169 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1564 transitions. [2022-10-16 17:53:06,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2022-10-16 17:53:06,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:53:06,976 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 54, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:53:07,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-10-16 17:53:07,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 17:53:07,190 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 17:53:07,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:53:07,191 INFO L85 PathProgramCache]: Analyzing trace with hash -161646399, now seen corresponding path program 4 times [2022-10-16 17:53:07,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:53:07,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191437227] [2022-10-16 17:53:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:53:07,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:53:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:53:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 19305 backedges. 0 proven. 19305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:53:12,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:53:12,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191437227] [2022-10-16 17:53:12,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191437227] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:53:12,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38790781] [2022-10-16 17:53:12,260 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:53:12,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:53:12,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:53:12,261 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:53:12,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 17:53:12,477 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:53:12,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:53:12,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 57 conjunts are in the unsatisfiable core [2022-10-16 17:53:12,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:53:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 19305 backedges. 0 proven. 19305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:53:21,055 INFO L328 TraceCheckSpWp]: Computing backward predicates...