/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:44:22,832 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-09-16 10:44:22,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:44:22,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:44:22,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:44:22,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:44:22,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:44:22,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:44:22,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:44:22,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:44:22,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:44:22,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:44:22,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:44:22,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:44:22,913 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:44:22,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:44:22,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:44:22,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:44:22,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:44:22,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:44:22,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:44:22,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:44:22,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:44:22,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:44:22,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:44:22,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:44:22,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:44:22,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:44:22,916 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:44:22,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:44:22,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:44:23,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:44:23,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:44:23,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:44:23,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:44:23,108 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:44:23,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-09-16 10:44:23,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d437930/881e918ae3bd43f89e3cb1afad203cad/FLAG6272fc88a [2022-09-16 10:44:23,533 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:44:23,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-09-16 10:44:23,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d437930/881e918ae3bd43f89e3cb1afad203cad/FLAG6272fc88a [2022-09-16 10:44:23,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d437930/881e918ae3bd43f89e3cb1afad203cad [2022-09-16 10:44:23,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:44:23,905 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:44:23,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:44:23,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:44:23,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:44:23,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:44:23" (1/1) ... [2022-09-16 10:44:23,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc64b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:23, skipping insertion in model container [2022-09-16 10:44:23,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:44:23" (1/1) ... [2022-09-16 10:44:23,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:44:23,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:44:24,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2022-09-16 10:44:24,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:44:24,200 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:44:24,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2022-09-16 10:44:24,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:44:24,254 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:44:24,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24 WrapperNode [2022-09-16 10:44:24,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:44:24,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:44:24,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:44:24,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:44:24,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,302 INFO L138 Inliner]: procedures = 165, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 103 [2022-09-16 10:44:24,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:44:24,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:44:24,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:44:24,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:44:24,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:44:24,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:44:24,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:44:24,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:44:24,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (1/1) ... [2022-09-16 10:44:24,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:44:24,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:24,372 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) [2022-09-16 10:44:24,378 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 [2022-09-16 10:44:24,413 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-09-16 10:44:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-09-16 10:44:24,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 10:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:44:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:44:24,416 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:44:24,503 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:44:24,504 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:44:24,650 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:44:24,656 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:44:24,656 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:44:24,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:44:24 BoogieIcfgContainer [2022-09-16 10:44:24,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:44:24,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:44:24,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:44:24,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:44:24,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:44:23" (1/3) ... [2022-09-16 10:44:24,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ecfb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:44:24, skipping insertion in model container [2022-09-16 10:44:24,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:44:24" (2/3) ... [2022-09-16 10:44:24,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ecfb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:44:24, skipping insertion in model container [2022-09-16 10:44:24,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:44:24" (3/3) ... [2022-09-16 10:44:24,665 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2022-09-16 10:44:24,671 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:44:24,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:44:24,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 10:44:24,685 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:44:24,758 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:44:24,788 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 127 transitions, 259 flow [2022-09-16 10:44:24,848 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1644 states, 1630 states have (on average 2.1785276073619633) internal successors, (3551), 1643 states have internal predecessors, (3551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:24,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:44:24,873 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;@663988aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:44:24,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-09-16 10:44:24,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 1644 states, 1630 states have (on average 2.1785276073619633) internal successors, (3551), 1643 states have internal predecessors, (3551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:24,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-09-16 10:44:24,890 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:24,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:24,891 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:24,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:24,896 INFO L85 PathProgramCache]: Analyzing trace with hash 118733176, now seen corresponding path program 1 times [2022-09-16 10:44:24,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:24,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692378898] [2022-09-16 10:44:24,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:24,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:25,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:25,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692378898] [2022-09-16 10:44:25,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692378898] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:25,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:25,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:44:25,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311351044] [2022-09-16 10:44:25,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:25,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:44:25,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:25,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:44:25,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:44:25,132 INFO L87 Difference]: Start difference. First operand has 1644 states, 1630 states have (on average 2.1785276073619633) internal successors, (3551), 1643 states have internal predecessors, (3551), 0 states have call successors, (0), 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 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:25,223 INFO L93 Difference]: Finished difference Result 1738 states and 3548 transitions. [2022-09-16 10:44:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:44:25,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-09-16 10:44:25,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:25,238 INFO L225 Difference]: With dead ends: 1738 [2022-09-16 10:44:25,238 INFO L226 Difference]: Without dead ends: 1612 [2022-09-16 10:44:25,239 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 [2022-09-16 10:44:25,242 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 102 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:25,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 298 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:25,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2022-09-16 10:44:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1572. [2022-09-16 10:44:25,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1554 states have (on average 2.0688545688545688) internal successors, (3215), 1571 states have internal predecessors, (3215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 3215 transitions. [2022-09-16 10:44:25,335 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 3215 transitions. Word has length 49 [2022-09-16 10:44:25,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:25,338 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 3215 transitions. [2022-09-16 10:44:25,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 3215 transitions. [2022-09-16 10:44:25,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:44:25,340 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:25,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:25,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:44:25,341 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:25,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash -66083864, now seen corresponding path program 1 times [2022-09-16 10:44:25,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:25,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790343514] [2022-09-16 10:44:25,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:25,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:25,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:25,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790343514] [2022-09-16 10:44:25,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790343514] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:25,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:25,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:44:25,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361947147] [2022-09-16 10:44:25,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:25,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:44:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:25,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:44:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:44:25,448 INFO L87 Difference]: Start difference. First operand 1572 states and 3215 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:25,511 INFO L93 Difference]: Finished difference Result 2041 states and 4176 transitions. [2022-09-16 10:44:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:44:25,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-09-16 10:44:25,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:25,520 INFO L225 Difference]: With dead ends: 2041 [2022-09-16 10:44:25,520 INFO L226 Difference]: Without dead ends: 2041 [2022-09-16 10:44:25,522 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 [2022-09-16 10:44:25,524 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 128 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:25,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 414 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:25,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2022-09-16 10:44:25,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 1963. [2022-09-16 10:44:25,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1963 states, 1945 states have (on average 2.0647814910025706) internal successors, (4016), 1962 states have internal predecessors, (4016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 4016 transitions. [2022-09-16 10:44:25,559 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 4016 transitions. Word has length 60 [2022-09-16 10:44:25,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:25,561 INFO L495 AbstractCegarLoop]: Abstraction has 1963 states and 4016 transitions. [2022-09-16 10:44:25,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 4016 transitions. [2022-09-16 10:44:25,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-09-16 10:44:25,563 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:25,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:25,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:44:25,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:25,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:25,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1445348346, now seen corresponding path program 1 times [2022-09-16 10:44:25,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:25,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228633802] [2022-09-16 10:44:25,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:25,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:25,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:25,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:25,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228633802] [2022-09-16 10:44:25,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228633802] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:25,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:25,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:44:25,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734522848] [2022-09-16 10:44:25,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:25,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:44:25,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:25,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:44:25,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:44:25,606 INFO L87 Difference]: Start difference. First operand 1963 states and 4016 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:25,637 INFO L93 Difference]: Finished difference Result 1575 states and 3135 transitions. [2022-09-16 10:44:25,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:44:25,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-09-16 10:44:25,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:25,642 INFO L225 Difference]: With dead ends: 1575 [2022-09-16 10:44:25,642 INFO L226 Difference]: Without dead ends: 1473 [2022-09-16 10:44:25,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:44:25,644 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 71 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:25,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 215 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2022-09-16 10:44:25,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1473. [2022-09-16 10:44:25,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1459 states have (on average 2.009595613433859) internal successors, (2932), 1472 states have internal predecessors, (2932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2932 transitions. [2022-09-16 10:44:25,684 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2932 transitions. Word has length 69 [2022-09-16 10:44:25,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:25,685 INFO L495 AbstractCegarLoop]: Abstraction has 1473 states and 2932 transitions. [2022-09-16 10:44:25,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2932 transitions. [2022-09-16 10:44:25,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:44:25,688 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:25,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:25,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:44:25,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:25,689 INFO L85 PathProgramCache]: Analyzing trace with hash -326896965, now seen corresponding path program 1 times [2022-09-16 10:44:25,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:25,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492348538] [2022-09-16 10:44:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:25,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:25,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:25,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492348538] [2022-09-16 10:44:25,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492348538] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:25,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:25,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:44:25,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336341620] [2022-09-16 10:44:25,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:25,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:44:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:25,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:44:25,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:44:25,802 INFO L87 Difference]: Start difference. First operand 1473 states and 2932 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:25,886 INFO L93 Difference]: Finished difference Result 2257 states and 4522 transitions. [2022-09-16 10:44:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:44:25,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-09-16 10:44:25,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:25,893 INFO L225 Difference]: With dead ends: 2257 [2022-09-16 10:44:25,893 INFO L226 Difference]: Without dead ends: 2257 [2022-09-16 10:44:25,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:44:25,896 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 171 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:25,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 544 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:44:25,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-09-16 10:44:25,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2151. [2022-09-16 10:44:25,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 2137 states have (on average 2.036499766027141) internal successors, (4352), 2150 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 4352 transitions. [2022-09-16 10:44:25,929 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 4352 transitions. Word has length 71 [2022-09-16 10:44:25,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:25,930 INFO L495 AbstractCegarLoop]: Abstraction has 2151 states and 4352 transitions. [2022-09-16 10:44:25,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:25,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 4352 transitions. [2022-09-16 10:44:25,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-09-16 10:44:25,933 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:25,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:25,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:44:25,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:25,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:25,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1543870950, now seen corresponding path program 1 times [2022-09-16 10:44:25,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:25,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689738955] [2022-09-16 10:44:25,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:25,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:26,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:26,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:26,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689738955] [2022-09-16 10:44:26,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689738955] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:26,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:26,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:44:26,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470779853] [2022-09-16 10:44:26,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:26,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:44:26,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:44:26,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:44:26,022 INFO L87 Difference]: Start difference. First operand 2151 states and 4352 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:26,056 INFO L93 Difference]: Finished difference Result 2531 states and 5035 transitions. [2022-09-16 10:44:26,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:44:26,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-09-16 10:44:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:26,063 INFO L225 Difference]: With dead ends: 2531 [2022-09-16 10:44:26,063 INFO L226 Difference]: Without dead ends: 2293 [2022-09-16 10:44:26,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:44:26,063 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 98 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:26,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 431 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2022-09-16 10:44:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2099. [2022-09-16 10:44:26,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 2089 states have (on average 1.9947343226424126) internal successors, (4167), 2098 states have internal predecessors, (4167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 4167 transitions. [2022-09-16 10:44:26,099 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 4167 transitions. Word has length 72 [2022-09-16 10:44:26,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:26,099 INFO L495 AbstractCegarLoop]: Abstraction has 2099 states and 4167 transitions. [2022-09-16 10:44:26,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 4167 transitions. [2022-09-16 10:44:26,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-09-16 10:44:26,100 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:26,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:26,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:44:26,101 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:26,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:26,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1372599684, now seen corresponding path program 1 times [2022-09-16 10:44:26,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:26,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635081686] [2022-09-16 10:44:26,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:26,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-09-16 10:44:26,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:26,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635081686] [2022-09-16 10:44:26,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635081686] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:26,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:26,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:44:26,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983258546] [2022-09-16 10:44:26,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:26,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:44:26,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:26,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:44:26,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:44:26,130 INFO L87 Difference]: Start difference. First operand 2099 states and 4167 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:26,163 INFO L93 Difference]: Finished difference Result 2397 states and 4776 transitions. [2022-09-16 10:44:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:44:26,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 72 [2022-09-16 10:44:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:26,170 INFO L225 Difference]: With dead ends: 2397 [2022-09-16 10:44:26,170 INFO L226 Difference]: Without dead ends: 2397 [2022-09-16 10:44:26,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:44:26,171 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 107 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:26,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 334 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-09-16 10:44:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2087. [2022-09-16 10:44:26,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 2078 states have (on average 1.9942252165543792) internal successors, (4144), 2086 states have internal predecessors, (4144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 4144 transitions. [2022-09-16 10:44:26,206 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 4144 transitions. Word has length 72 [2022-09-16 10:44:26,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:26,206 INFO L495 AbstractCegarLoop]: Abstraction has 2087 states and 4144 transitions. [2022-09-16 10:44:26,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 4144 transitions. [2022-09-16 10:44:26,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-09-16 10:44:26,207 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:26,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:26,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:44:26,208 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:26,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:26,208 INFO L85 PathProgramCache]: Analyzing trace with hash -399082489, now seen corresponding path program 1 times [2022-09-16 10:44:26,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:26,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865802153] [2022-09-16 10:44:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:26,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:26,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:26,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865802153] [2022-09-16 10:44:26,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865802153] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:26,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343143745] [2022-09-16 10:44:26,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:26,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:26,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:26,271 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) [2022-09-16 10:44:26,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:44:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:26,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:44:26,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:26,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:44:26,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343143745] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:26,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:44:26,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:44:26,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816750062] [2022-09-16 10:44:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:26,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:44:26,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:26,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:44:26,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:44:26,414 INFO L87 Difference]: Start difference. First operand 2087 states and 4144 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:26,468 INFO L93 Difference]: Finished difference Result 2618 states and 5203 transitions. [2022-09-16 10:44:26,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:44:26,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-09-16 10:44:26,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:26,475 INFO L225 Difference]: With dead ends: 2618 [2022-09-16 10:44:26,475 INFO L226 Difference]: Without dead ends: 2618 [2022-09-16 10:44:26,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:44:26,476 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 136 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:26,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 368 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:26,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2022-09-16 10:44:26,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2277. [2022-09-16 10:44:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2268 states have (on average 1.994268077601411) internal successors, (4523), 2276 states have internal predecessors, (4523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 4523 transitions. [2022-09-16 10:44:26,512 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 4523 transitions. Word has length 73 [2022-09-16 10:44:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:26,513 INFO L495 AbstractCegarLoop]: Abstraction has 2277 states and 4523 transitions. [2022-09-16 10:44:26,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 4523 transitions. [2022-09-16 10:44:26,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-09-16 10:44:26,514 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:26,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:26,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:44:26,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:26,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:26,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:26,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1279354972, now seen corresponding path program 1 times [2022-09-16 10:44:26,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:26,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643777227] [2022-09-16 10:44:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:26,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:26,811 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:26,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:26,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643777227] [2022-09-16 10:44:26,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643777227] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:26,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665968845] [2022-09-16 10:44:26,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:26,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:26,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:26,812 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) [2022-09-16 10:44:26,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:44:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:26,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:44:26,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:26,977 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:26,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:27,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665968845] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:27,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:44:27,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:44:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949096950] [2022-09-16 10:44:27,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:27,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:44:27,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:27,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:44:27,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:44:27,048 INFO L87 Difference]: Start difference. First operand 2277 states and 4523 transitions. Second operand has 12 states, 11 states have (on average 13.636363636363637) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:27,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:27,196 INFO L93 Difference]: Finished difference Result 6578 states and 13142 transitions. [2022-09-16 10:44:27,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:44:27,196 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.636363636363637) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 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 83 [2022-09-16 10:44:27,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:27,228 INFO L225 Difference]: With dead ends: 6578 [2022-09-16 10:44:27,229 INFO L226 Difference]: Without dead ends: 6578 [2022-09-16 10:44:27,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:44:27,230 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1089 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:27,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1126 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:27,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6578 states. [2022-09-16 10:44:27,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6578 to 5699. [2022-09-16 10:44:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5690 states have (on average 2.0518453427065024) internal successors, (11675), 5698 states have internal predecessors, (11675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 11675 transitions. [2022-09-16 10:44:27,331 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 11675 transitions. Word has length 83 [2022-09-16 10:44:27,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:27,331 INFO L495 AbstractCegarLoop]: Abstraction has 5699 states and 11675 transitions. [2022-09-16 10:44:27,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.636363636363637) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 11675 transitions. [2022-09-16 10:44:27,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-09-16 10:44:27,332 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:27,332 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:27,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:44:27,549 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,SelfDestructingSolverStorable7 [2022-09-16 10:44:27,549 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:27,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1005298776, now seen corresponding path program 1 times [2022-09-16 10:44:27,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:27,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808343679] [2022-09-16 10:44:27,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:27,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:27,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:27,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808343679] [2022-09-16 10:44:27,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808343679] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:27,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218422280] [2022-09-16 10:44:27,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:27,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:27,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:27,589 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) [2022-09-16 10:44:27,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:44:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:27,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:44:27,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:27,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:44:27,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218422280] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:27,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:44:27,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:44:27,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207733959] [2022-09-16 10:44:27,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:27,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:44:27,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:27,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:44:27,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:44:27,708 INFO L87 Difference]: Start difference. First operand 5699 states and 11675 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:27,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:27,783 INFO L93 Difference]: Finished difference Result 5622 states and 11375 transitions. [2022-09-16 10:44:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:44:27,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-09-16 10:44:27,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:27,792 INFO L225 Difference]: With dead ends: 5622 [2022-09-16 10:44:27,792 INFO L226 Difference]: Without dead ends: 5606 [2022-09-16 10:44:27,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:44:27,794 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 204 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:27,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 637 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:27,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2022-09-16 10:44:27,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 5606. [2022-09-16 10:44:27,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 5600 states have (on average 2.0155357142857144) internal successors, (11287), 5605 states have internal predecessors, (11287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 11287 transitions. [2022-09-16 10:44:27,892 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 11287 transitions. Word has length 84 [2022-09-16 10:44:27,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:27,892 INFO L495 AbstractCegarLoop]: Abstraction has 5606 states and 11287 transitions. [2022-09-16 10:44:27,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:27,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 11287 transitions. [2022-09-16 10:44:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-09-16 10:44:27,894 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:27,894 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:27,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-09-16 10:44:28,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:28,110 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:28,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:28,110 INFO L85 PathProgramCache]: Analyzing trace with hash 621714259, now seen corresponding path program 1 times [2022-09-16 10:44:28,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:28,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675837756] [2022-09-16 10:44:28,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:28,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:28,211 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:28,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:28,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675837756] [2022-09-16 10:44:28,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675837756] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:28,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833434992] [2022-09-16 10:44:28,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:28,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:28,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:28,213 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) [2022-09-16 10:44:28,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:44:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:28,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:44:28,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:28,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:28,453 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:28,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833434992] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:28,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:44:28,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2022-09-16 10:44:28,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411584758] [2022-09-16 10:44:28,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:28,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-16 10:44:28,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:28,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-16 10:44:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-09-16 10:44:28,455 INFO L87 Difference]: Start difference. First operand 5606 states and 11287 transitions. Second operand has 13 states, 12 states have (on average 13.5) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:28,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:28,634 INFO L93 Difference]: Finished difference Result 8557 states and 17219 transitions. [2022-09-16 10:44:28,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 10:44:28,634 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.5) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 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 94 [2022-09-16 10:44:28,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:28,648 INFO L225 Difference]: With dead ends: 8557 [2022-09-16 10:44:28,648 INFO L226 Difference]: Without dead ends: 7997 [2022-09-16 10:44:28,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 189 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2022-09-16 10:44:28,649 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 665 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:28,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1023 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:44:28,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7997 states. [2022-09-16 10:44:28,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7997 to 5647. [2022-09-16 10:44:28,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5647 states, 5644 states have (on average 1.9976966690290574) internal successors, (11275), 5646 states have internal predecessors, (11275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5647 states to 5647 states and 11275 transitions. [2022-09-16 10:44:28,813 INFO L78 Accepts]: Start accepts. Automaton has 5647 states and 11275 transitions. Word has length 94 [2022-09-16 10:44:28,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:28,813 INFO L495 AbstractCegarLoop]: Abstraction has 5647 states and 11275 transitions. [2022-09-16 10:44:28,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.5) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:28,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5647 states and 11275 transitions. [2022-09-16 10:44:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:28,827 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:28,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:28,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-09-16 10:44:29,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:29,028 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:29,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:29,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1598296635, now seen corresponding path program 1 times [2022-09-16 10:44:29,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:29,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480764429] [2022-09-16 10:44:29,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:29,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:29,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:29,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480764429] [2022-09-16 10:44:29,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480764429] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:29,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:29,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:44:29,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256651860] [2022-09-16 10:44:29,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:29,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:44:29,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:29,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:44:29,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:44:29,072 INFO L87 Difference]: Start difference. First operand 5647 states and 11275 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:29,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:29,132 INFO L93 Difference]: Finished difference Result 6366 states and 12650 transitions. [2022-09-16 10:44:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:44:29,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-09-16 10:44:29,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:29,143 INFO L225 Difference]: With dead ends: 6366 [2022-09-16 10:44:29,143 INFO L226 Difference]: Without dead ends: 6366 [2022-09-16 10:44:29,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:44:29,143 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 198 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:29,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 444 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:44:29,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6366 states. [2022-09-16 10:44:29,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6366 to 5458. [2022-09-16 10:44:29,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5456 states have (on average 1.9877199413489737) internal successors, (10845), 5457 states have internal predecessors, (10845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 10845 transitions. [2022-09-16 10:44:29,213 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 10845 transitions. Word has length 96 [2022-09-16 10:44:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:29,214 INFO L495 AbstractCegarLoop]: Abstraction has 5458 states and 10845 transitions. [2022-09-16 10:44:29,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 10845 transitions. [2022-09-16 10:44:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-09-16 10:44:29,222 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:29,222 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:29,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:44:29,222 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:29,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:29,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1097852462, now seen corresponding path program 1 times [2022-09-16 10:44:29,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:29,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622700268] [2022-09-16 10:44:29,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:29,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 85 proven. 90 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-09-16 10:44:29,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:29,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622700268] [2022-09-16 10:44:29,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622700268] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:29,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788602487] [2022-09-16 10:44:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:29,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:29,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:29,286 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) [2022-09-16 10:44:29,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:44:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:29,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 8 conjunts are in the unsatisfiable core [2022-09-16 10:44:29,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:29,454 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 85 proven. 90 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-09-16 10:44:29,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 85 proven. 90 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-09-16 10:44:29,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788602487] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:29,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:44:29,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-09-16 10:44:29,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525815164] [2022-09-16 10:44:29,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:29,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:44:29,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:29,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:44:29,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:44:29,580 INFO L87 Difference]: Start difference. First operand 5458 states and 10845 transitions. Second operand has 18 states, 18 states have (on average 13.88888888888889) internal successors, (250), 18 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:29,780 INFO L93 Difference]: Finished difference Result 7480 states and 14764 transitions. [2022-09-16 10:44:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:44:29,781 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.88888888888889) internal successors, (250), 18 states have internal predecessors, (250), 0 states have call successors, (0), 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 142 [2022-09-16 10:44:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:29,795 INFO L225 Difference]: With dead ends: 7480 [2022-09-16 10:44:29,795 INFO L226 Difference]: Without dead ends: 7060 [2022-09-16 10:44:29,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:44:29,796 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 728 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:29,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 733 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:44:29,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7060 states. [2022-09-16 10:44:29,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7060 to 5342. [2022-09-16 10:44:29,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5340 states have (on average 1.9709737827715357) internal successors, (10525), 5341 states have internal predecessors, (10525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:29,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 10525 transitions. [2022-09-16 10:44:29,862 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 10525 transitions. Word has length 142 [2022-09-16 10:44:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:29,862 INFO L495 AbstractCegarLoop]: Abstraction has 5342 states and 10525 transitions. [2022-09-16 10:44:29,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.88888888888889) internal successors, (250), 18 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 10525 transitions. [2022-09-16 10:44:29,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-09-16 10:44:29,867 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:29,867 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:29,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:44:30,083 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,SelfDestructingSolverStorable11 [2022-09-16 10:44:30,083 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:30,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash -667910424, now seen corresponding path program 2 times [2022-09-16 10:44:30,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:30,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901794683] [2022-09-16 10:44:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:30,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:30,182 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:30,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:30,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901794683] [2022-09-16 10:44:30,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901794683] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:30,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122623911] [2022-09-16 10:44:30,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:44:30,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:30,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:30,183 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) [2022-09-16 10:44:30,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:44:30,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:44:30,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:44:30,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 11 conjunts are in the unsatisfiable core [2022-09-16 10:44:30,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:30,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:30,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122623911] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:30,554 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:44:30,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-09-16 10:44:30,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452602481] [2022-09-16 10:44:30,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:30,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-16 10:44:30,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:30,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-16 10:44:30,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-09-16 10:44:30,555 INFO L87 Difference]: Start difference. First operand 5342 states and 10525 transitions. Second operand has 24 states, 23 states have (on average 12.521739130434783) internal successors, (288), 24 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:30,922 INFO L93 Difference]: Finished difference Result 13602 states and 26872 transitions. [2022-09-16 10:44:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-16 10:44:30,922 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 12.521739130434783) internal successors, (288), 24 states have internal predecessors, (288), 0 states have call successors, (0), 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 152 [2022-09-16 10:44:30,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:30,944 INFO L225 Difference]: With dead ends: 13602 [2022-09-16 10:44:30,944 INFO L226 Difference]: Without dead ends: 13224 [2022-09-16 10:44:30,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=576, Invalid=1230, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:44:30,945 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 2272 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:30,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 1598 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:44:30,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13224 states. [2022-09-16 10:44:31,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13224 to 12462. [2022-09-16 10:44:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12462 states, 12460 states have (on average 1.9678972712680578) internal successors, (24520), 12461 states have internal predecessors, (24520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:31,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12462 states to 12462 states and 24520 transitions. [2022-09-16 10:44:31,160 INFO L78 Accepts]: Start accepts. Automaton has 12462 states and 24520 transitions. Word has length 152 [2022-09-16 10:44:31,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:31,160 INFO L495 AbstractCegarLoop]: Abstraction has 12462 states and 24520 transitions. [2022-09-16 10:44:31,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 12.521739130434783) internal successors, (288), 24 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:31,161 INFO L276 IsEmpty]: Start isEmpty. Operand 12462 states and 24520 transitions. [2022-09-16 10:44:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-09-16 10:44:31,181 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:31,181 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:31,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:44:31,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:31,396 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:31,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1567588292, now seen corresponding path program 2 times [2022-09-16 10:44:31,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:31,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188841873] [2022-09-16 10:44:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:31,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 455 proven. 532 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-09-16 10:44:31,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:31,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188841873] [2022-09-16 10:44:31,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188841873] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:31,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160468306] [2022-09-16 10:44:31,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:44:31,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:31,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:31,584 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) [2022-09-16 10:44:31,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:44:31,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:44:31,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:44:31,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 16 conjunts are in the unsatisfiable core [2022-09-16 10:44:31,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 80 proven. 877 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-09-16 10:44:31,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 80 proven. 877 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-09-16 10:44:32,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160468306] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:32,414 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:44:32,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-09-16 10:44:32,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745948399] [2022-09-16 10:44:32,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:32,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-09-16 10:44:32,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:32,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-09-16 10:44:32,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-09-16 10:44:32,416 INFO L87 Difference]: Start difference. First operand 12462 states and 24520 transitions. Second operand has 34 states, 34 states have (on average 12.823529411764707) internal successors, (436), 34 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:32,907 INFO L93 Difference]: Finished difference Result 16522 states and 32385 transitions. [2022-09-16 10:44:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-09-16 10:44:32,907 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 12.823529411764707) internal successors, (436), 34 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2022-09-16 10:44:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:32,934 INFO L225 Difference]: With dead ends: 16522 [2022-09-16 10:44:32,934 INFO L226 Difference]: Without dead ends: 16522 [2022-09-16 10:44:32,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-09-16 10:44:32,936 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1405 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:32,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 1122 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:44:32,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16522 states. [2022-09-16 10:44:33,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16522 to 13668. [2022-09-16 10:44:33,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13668 states, 13666 states have (on average 1.967876481779599) internal successors, (26893), 13667 states have internal predecessors, (26893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13668 states to 13668 states and 26893 transitions. [2022-09-16 10:44:33,152 INFO L78 Accepts]: Start accepts. Automaton has 13668 states and 26893 transitions. Word has length 270 [2022-09-16 10:44:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:33,153 INFO L495 AbstractCegarLoop]: Abstraction has 13668 states and 26893 transitions. [2022-09-16 10:44:33,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 12.823529411764707) internal successors, (436), 34 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 13668 states and 26893 transitions. [2022-09-16 10:44:33,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-09-16 10:44:33,167 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:33,167 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:33,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:44:33,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:33,375 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:33,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:33,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1517424402, now seen corresponding path program 1 times [2022-09-16 10:44:33,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:33,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375319944] [2022-09-16 10:44:33,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:33,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 451 proven. 74 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-09-16 10:44:33,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:33,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375319944] [2022-09-16 10:44:33,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375319944] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:33,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694909140] [2022-09-16 10:44:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:33,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:33,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:33,456 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) [2022-09-16 10:44:33,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 10:44:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:33,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:44:33,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 451 proven. 67 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2022-09-16 10:44:33,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:33,817 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 451 proven. 67 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2022-09-16 10:44:33,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694909140] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:33,817 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:44:33,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 16 [2022-09-16 10:44:33,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571286645] [2022-09-16 10:44:33,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:33,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:44:33,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:33,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:44:33,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:44:33,818 INFO L87 Difference]: Start difference. First operand 13668 states and 26893 transitions. Second operand has 16 states, 16 states have (on average 16.0) internal successors, (256), 16 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:34,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:34,196 INFO L93 Difference]: Finished difference Result 36355 states and 71117 transitions. [2022-09-16 10:44:34,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:44:34,196 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.0) internal successors, (256), 16 states have internal predecessors, (256), 0 states have call successors, (0), 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 273 [2022-09-16 10:44:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:34,251 INFO L225 Difference]: With dead ends: 36355 [2022-09-16 10:44:34,251 INFO L226 Difference]: Without dead ends: 36055 [2022-09-16 10:44:34,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=260, Invalid=732, Unknown=0, NotChecked=0, Total=992 [2022-09-16 10:44:34,252 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 659 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:34,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1108 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:44:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36055 states. [2022-09-16 10:44:34,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36055 to 21801. [2022-09-16 10:44:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21801 states, 21799 states have (on average 1.9593100600944997) internal successors, (42711), 21800 states have internal predecessors, (42711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21801 states to 21801 states and 42711 transitions. [2022-09-16 10:44:34,735 INFO L78 Accepts]: Start accepts. Automaton has 21801 states and 42711 transitions. Word has length 273 [2022-09-16 10:44:34,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:34,735 INFO L495 AbstractCegarLoop]: Abstraction has 21801 states and 42711 transitions. [2022-09-16 10:44:34,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.0) internal successors, (256), 16 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 21801 states and 42711 transitions. [2022-09-16 10:44:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-09-16 10:44:34,755 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:34,755 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 7, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:34,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-09-16 10:44:34,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 10:44:34,969 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:34,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:34,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1006625813, now seen corresponding path program 2 times [2022-09-16 10:44:34,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:34,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864949732] [2022-09-16 10:44:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:34,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 506 proven. 163 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-09-16 10:44:35,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:35,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864949732] [2022-09-16 10:44:35,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864949732] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:35,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009458638] [2022-09-16 10:44:35,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:44:35,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:35,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:35,068 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) [2022-09-16 10:44:35,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 10:44:35,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:44:35,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:44:35,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 10:44:35,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 170 proven. 421 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-09-16 10:44:35,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:35,808 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 170 proven. 421 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-09-16 10:44:35,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009458638] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:35,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:44:35,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-09-16 10:44:35,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076457956] [2022-09-16 10:44:35,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:35,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-16 10:44:35,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:35,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-16 10:44:35,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-09-16 10:44:35,810 INFO L87 Difference]: Start difference. First operand 21801 states and 42711 transitions. Second operand has 24 states, 24 states have (on average 14.416666666666666) internal successors, (346), 24 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:36,377 INFO L93 Difference]: Finished difference Result 55555 states and 108912 transitions. [2022-09-16 10:44:36,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-09-16 10:44:36,377 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 14.416666666666666) internal successors, (346), 24 states have internal predecessors, (346), 0 states have call successors, (0), 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 278 [2022-09-16 10:44:36,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:36,463 INFO L225 Difference]: With dead ends: 55555 [2022-09-16 10:44:36,463 INFO L226 Difference]: Without dead ends: 55555 [2022-09-16 10:44:36,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1707, Unknown=0, NotChecked=0, Total=2256 [2022-09-16 10:44:36,464 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1049 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:36,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1358 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:44:36,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55555 states. [2022-09-16 10:44:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55555 to 30248. [2022-09-16 10:44:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30248 states, 30246 states have (on average 1.9629703101236526) internal successors, (59372), 30247 states have internal predecessors, (59372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30248 states to 30248 states and 59372 transitions. [2022-09-16 10:44:37,113 INFO L78 Accepts]: Start accepts. Automaton has 30248 states and 59372 transitions. Word has length 278 [2022-09-16 10:44:37,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:37,113 INFO L495 AbstractCegarLoop]: Abstraction has 30248 states and 59372 transitions. [2022-09-16 10:44:37,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 14.416666666666666) internal successors, (346), 24 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:37,114 INFO L276 IsEmpty]: Start isEmpty. Operand 30248 states and 59372 transitions. [2022-09-16 10:44:37,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-09-16 10:44:37,139 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:37,140 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:37,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-09-16 10:44:37,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 10:44:37,356 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:44:37,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:37,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2074661181, now seen corresponding path program 3 times [2022-09-16 10:44:37,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:37,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108854013] [2022-09-16 10:44:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:37,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 508 proven. 371 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-09-16 10:44:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:37,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108854013] [2022-09-16 10:44:37,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108854013] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:44:37,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378587571] [2022-09-16 10:44:37,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 10:44:37,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:37,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:37,490 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) [2022-09-16 10:44:37,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 10:44:37,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-09-16 10:44:37,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:44:37,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 23 conjunts are in the unsatisfiable core [2022-09-16 10:44:37,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:38,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:38,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378587571] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:38,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:44:38,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 23, 23] total 60 [2022-09-16 10:44:38,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410667450] [2022-09-16 10:44:38,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:38,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-09-16 10:44:38,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:38,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-09-16 10:44:38,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=615, Invalid=2925, Unknown=0, NotChecked=0, Total=3540 [2022-09-16 10:44:38,853 INFO L87 Difference]: Start difference. First operand 30248 states and 59372 transitions. Second operand has 60 states, 60 states have (on average 12.033333333333333) internal successors, (722), 60 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:07,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:07,148 INFO L93 Difference]: Finished difference Result 107973 states and 211937 transitions. [2022-09-16 10:45:07,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 783 states. [2022-09-16 10:45:07,149 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 12.033333333333333) internal successors, (722), 60 states have internal predecessors, (722), 0 states have call successors, (0), 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 288 [2022-09-16 10:45:07,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:07,504 INFO L225 Difference]: With dead ends: 107973 [2022-09-16 10:45:07,504 INFO L226 Difference]: Without dead ends: 106713 [2022-09-16 10:45:07,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1343 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 810 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340775 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=102999, Invalid=555533, Unknown=0, NotChecked=0, Total=658532 [2022-09-16 10:45:07,543 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 19295 mSDsluCounter, 10833 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19295 SdHoareTripleChecker+Valid, 10991 SdHoareTripleChecker+Invalid, 3945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:07,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19295 Valid, 10991 Invalid, 3945 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [529 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-09-16 10:45:07,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106713 states. [2022-09-16 10:45:08,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106713 to 78726. [2022-09-16 10:45:08,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78726 states, 78724 states have (on average 1.9634164930643767) internal successors, (154568), 78725 states have internal predecessors, (154568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:08,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78726 states to 78726 states and 154568 transitions. [2022-09-16 10:45:08,951 INFO L78 Accepts]: Start accepts. Automaton has 78726 states and 154568 transitions. Word has length 288 [2022-09-16 10:45:08,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:08,951 INFO L495 AbstractCegarLoop]: Abstraction has 78726 states and 154568 transitions. [2022-09-16 10:45:08,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 12.033333333333333) internal successors, (722), 60 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 78726 states and 154568 transitions. [2022-09-16 10:45:09,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-09-16 10:45:09,003 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:09,003 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 17, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:09,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-16 10:45:09,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 10:45:09,221 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:45:09,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:09,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1035247423, now seen corresponding path program 4 times [2022-09-16 10:45:09,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:09,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925843430] [2022-09-16 10:45:09,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:09,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:09,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 1888 proven. 364 refuted. 0 times theorem prover too weak. 2311 trivial. 0 not checked. [2022-09-16 10:45:09,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:09,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925843430] [2022-09-16 10:45:09,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925843430] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:09,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465289387] [2022-09-16 10:45:09,424 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-09-16 10:45:09,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:09,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:09,433 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) [2022-09-16 10:45:09,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 10:45:09,628 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-09-16 10:45:09,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:45:09,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 16 conjunts are in the unsatisfiable core [2022-09-16 10:45:09,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:09,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 2269 proven. 610 refuted. 0 times theorem prover too weak. 1684 trivial. 0 not checked. [2022-09-16 10:45:09,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 2269 proven. 610 refuted. 0 times theorem prover too weak. 1684 trivial. 0 not checked. [2022-09-16 10:45:10,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465289387] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:10,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:45:10,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 28 [2022-09-16 10:45:10,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982781261] [2022-09-16 10:45:10,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:10,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-09-16 10:45:10,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:10,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-09-16 10:45:10,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2022-09-16 10:45:10,207 INFO L87 Difference]: Start difference. First operand 78726 states and 154568 transitions. Second operand has 28 states, 28 states have (on average 14.142857142857142) internal successors, (396), 28 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) [2022-09-16 10:45:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:11,648 INFO L93 Difference]: Finished difference Result 165278 states and 323619 transitions. [2022-09-16 10:45:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:45:11,648 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 14.142857142857142) internal successors, (396), 28 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) Word has length 504 [2022-09-16 10:45:11,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:12,086 INFO L225 Difference]: With dead ends: 165278 [2022-09-16 10:45:12,086 INFO L226 Difference]: Without dead ends: 165278 [2022-09-16 10:45:12,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1053 GetRequests, 997 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=801, Invalid=2505, Unknown=0, NotChecked=0, Total=3306 [2022-09-16 10:45:12,087 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 1443 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:12,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1443 Valid, 1435 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:45:12,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165278 states. [2022-09-16 10:45:13,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165278 to 97319. [2022-09-16 10:45:13,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97319 states, 97317 states have (on average 1.9634493459518891) internal successors, (191077), 97318 states have internal predecessors, (191077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:14,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97319 states to 97319 states and 191077 transitions. [2022-09-16 10:45:14,183 INFO L78 Accepts]: Start accepts. Automaton has 97319 states and 191077 transitions. Word has length 504 [2022-09-16 10:45:14,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:14,184 INFO L495 AbstractCegarLoop]: Abstraction has 97319 states and 191077 transitions. [2022-09-16 10:45:14,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 14.142857142857142) internal successors, (396), 28 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) [2022-09-16 10:45:14,184 INFO L276 IsEmpty]: Start isEmpty. Operand 97319 states and 191077 transitions. [2022-09-16 10:45:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-09-16 10:45:14,251 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:14,251 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 15, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:14,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 10:45:14,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-09-16 10:45:14,460 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:45:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:14,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1635498667, now seen corresponding path program 5 times [2022-09-16 10:45:14,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:14,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109769337] [2022-09-16 10:45:14,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:14,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4628 backedges. 2178 proven. 684 refuted. 0 times theorem prover too weak. 1766 trivial. 0 not checked. [2022-09-16 10:45:14,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:14,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109769337] [2022-09-16 10:45:14,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109769337] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:14,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314618697] [2022-09-16 10:45:14,917 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-09-16 10:45:14,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:14,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:14,932 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) [2022-09-16 10:45:14,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 10:45:15,202 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2022-09-16 10:45:15,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:45:15,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 20 conjunts are in the unsatisfiable core [2022-09-16 10:45:15,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4628 backedges. 2178 proven. 677 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2022-09-16 10:45:15,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4628 backedges. 2178 proven. 677 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2022-09-16 10:45:15,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314618697] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:15,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:45:15,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 18] total 36 [2022-09-16 10:45:15,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465240189] [2022-09-16 10:45:15,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:15,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-09-16 10:45:15,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-09-16 10:45:15,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2022-09-16 10:45:15,839 INFO L87 Difference]: Start difference. First operand 97319 states and 191077 transitions. Second operand has 36 states, 36 states have (on average 13.5) internal successors, (486), 36 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:17,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:17,342 INFO L93 Difference]: Finished difference Result 245046 states and 479569 transitions. [2022-09-16 10:45:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-09-16 10:45:17,342 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 13.5) internal successors, (486), 36 states have internal predecessors, (486), 0 states have call successors, (0), 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 514 [2022-09-16 10:45:17,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:18,036 INFO L225 Difference]: With dead ends: 245046 [2022-09-16 10:45:18,036 INFO L226 Difference]: Without dead ends: 245046 [2022-09-16 10:45:18,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1088 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1456 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1555, Invalid=4297, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:45:18,037 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 2494 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2494 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:18,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2494 Valid, 1834 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:45:18,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245046 states. [2022-09-16 10:45:20,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245046 to 138760. [2022-09-16 10:45:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138760 states, 138758 states have (on average 1.9658181870594849) internal successors, (272773), 138759 states have internal predecessors, (272773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138760 states to 138760 states and 272773 transitions. [2022-09-16 10:45:21,446 INFO L78 Accepts]: Start accepts. Automaton has 138760 states and 272773 transitions. Word has length 514 [2022-09-16 10:45:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:21,448 INFO L495 AbstractCegarLoop]: Abstraction has 138760 states and 272773 transitions. [2022-09-16 10:45:21,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 13.5) internal successors, (486), 36 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 138760 states and 272773 transitions. [2022-09-16 10:45:21,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-09-16 10:45:21,562 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:21,562 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 13, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:21,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-09-16 10:45:21,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:21,779 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:45:21,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:21,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1850965037, now seen corresponding path program 6 times [2022-09-16 10:45:21,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:21,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814789684] [2022-09-16 10:45:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:21,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4713 backedges. 2324 proven. 1082 refuted. 0 times theorem prover too weak. 1307 trivial. 0 not checked. [2022-09-16 10:45:22,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:22,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814789684] [2022-09-16 10:45:22,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814789684] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:22,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800145484] [2022-09-16 10:45:22,138 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-09-16 10:45:22,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:22,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:22,152 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) [2022-09-16 10:45:22,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 10:45:22,415 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2022-09-16 10:45:22,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:45:22,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 24 conjunts are in the unsatisfiable core [2022-09-16 10:45:22,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4713 backedges. 176 proven. 3110 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2022-09-16 10:45:23,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4713 backedges. 176 proven. 3110 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2022-09-16 10:45:23,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800145484] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:23,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:45:23,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 44 [2022-09-16 10:45:23,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382990012] [2022-09-16 10:45:23,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:23,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-09-16 10:45:23,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:23,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-09-16 10:45:23,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-09-16 10:45:23,667 INFO L87 Difference]: Start difference. First operand 138760 states and 272773 transitions. Second operand has 44 states, 44 states have (on average 13.181818181818182) internal successors, (580), 44 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:25,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:25,815 INFO L93 Difference]: Finished difference Result 360754 states and 706625 transitions. [2022-09-16 10:45:25,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-09-16 10:45:25,822 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 13.181818181818182) internal successors, (580), 44 states have internal predecessors, (580), 0 states have call successors, (0), 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 524 [2022-09-16 10:45:25,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:26,563 INFO L225 Difference]: With dead ends: 360754 [2022-09-16 10:45:26,565 INFO L226 Difference]: Without dead ends: 360754 [2022-09-16 10:45:26,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2052 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2135, Invalid=6055, Unknown=0, NotChecked=0, Total=8190 [2022-09-16 10:45:26,566 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 2558 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:26,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 2516 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:45:27,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360754 states. [2022-09-16 10:45:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360754 to 160191. [2022-09-16 10:45:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160191 states, 160189 states have (on average 1.9665145546822815) internal successors, (315014), 160190 states have internal predecessors, (315014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:30,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160191 states to 160191 states and 315014 transitions. [2022-09-16 10:45:30,798 INFO L78 Accepts]: Start accepts. Automaton has 160191 states and 315014 transitions. Word has length 524 [2022-09-16 10:45:30,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:30,798 INFO L495 AbstractCegarLoop]: Abstraction has 160191 states and 315014 transitions. [2022-09-16 10:45:30,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 13.181818181818182) internal successors, (580), 44 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:30,798 INFO L276 IsEmpty]: Start isEmpty. Operand 160191 states and 315014 transitions. [2022-09-16 10:45:31,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-09-16 10:45:31,306 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:31,306 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:31,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-09-16 10:45:31,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-09-16 10:45:31,516 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:45:31,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:31,517 INFO L85 PathProgramCache]: Analyzing trace with hash 938693505, now seen corresponding path program 7 times [2022-09-16 10:45:31,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:31,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499384680] [2022-09-16 10:45:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:31,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 2326 proven. 1579 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2022-09-16 10:45:31,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:31,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499384680] [2022-09-16 10:45:31,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499384680] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:31,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760692360] [2022-09-16 10:45:31,825 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-09-16 10:45:31,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:31,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:31,840 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) [2022-09-16 10:45:31,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-09-16 10:45:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:32,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 28 conjunts are in the unsatisfiable core [2022-09-16 10:45:32,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 2326 proven. 1579 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2022-09-16 10:45:32,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:32,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 2326 proven. 1579 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2022-09-16 10:45:32,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760692360] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:32,994 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:45:32,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 52 [2022-09-16 10:45:32,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037399782] [2022-09-16 10:45:32,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:32,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-09-16 10:45:32,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-09-16 10:45:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=655, Invalid=1997, Unknown=0, NotChecked=0, Total=2652 [2022-09-16 10:45:32,996 INFO L87 Difference]: Start difference. First operand 160191 states and 315014 transitions. Second operand has 52 states, 52 states have (on average 12.884615384615385) internal successors, (670), 52 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:35,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:35,911 INFO L93 Difference]: Finished difference Result 395089 states and 773901 transitions. [2022-09-16 10:45:35,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-09-16 10:45:35,911 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 12.884615384615385) internal successors, (670), 52 states have internal predecessors, (670), 0 states have call successors, (0), 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 534 [2022-09-16 10:45:35,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:37,072 INFO L225 Difference]: With dead ends: 395089 [2022-09-16 10:45:37,072 INFO L226 Difference]: Without dead ends: 395089 [2022-09-16 10:45:37,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1153 GetRequests, 1045 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3039 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=3113, Invalid=8877, Unknown=0, NotChecked=0, Total=11990 [2022-09-16 10:45:37,075 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 3551 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:37,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3551 Valid, 2470 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:45:37,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395089 states. [2022-09-16 10:45:41,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395089 to 167212. [2022-09-16 10:45:41,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167212 states, 167210 states have (on average 1.9668560492793494) internal successors, (328878), 167211 states have internal predecessors, (328878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:42,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167212 states to 167212 states and 328878 transitions. [2022-09-16 10:45:42,130 INFO L78 Accepts]: Start accepts. Automaton has 167212 states and 328878 transitions. Word has length 534 [2022-09-16 10:45:42,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:42,130 INFO L495 AbstractCegarLoop]: Abstraction has 167212 states and 328878 transitions. [2022-09-16 10:45:42,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 12.884615384615385) internal successors, (670), 52 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:42,131 INFO L276 IsEmpty]: Start isEmpty. Operand 167212 states and 328878 transitions. [2022-09-16 10:45:42,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-09-16 10:45:42,285 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:42,285 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 15, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:42,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-09-16 10:45:42,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:42,503 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:45:42,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:42,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1089412558, now seen corresponding path program 1 times [2022-09-16 10:45:42,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:42,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950054405] [2022-09-16 10:45:42,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:42,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4650 backedges. 2178 proven. 676 refuted. 0 times theorem prover too weak. 1796 trivial. 0 not checked. [2022-09-16 10:45:42,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:42,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950054405] [2022-09-16 10:45:42,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950054405] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:42,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739041266] [2022-09-16 10:45:42,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:43,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:43,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:43,064 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) [2022-09-16 10:45:43,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-09-16 10:45:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:43,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 22 conjunts are in the unsatisfiable core [2022-09-16 10:45:43,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4650 backedges. 2178 proven. 676 refuted. 0 times theorem prover too weak. 1796 trivial. 0 not checked. [2022-09-16 10:45:43,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4650 backedges. 2178 proven. 676 refuted. 0 times theorem prover too weak. 1796 trivial. 0 not checked. [2022-09-16 10:45:44,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739041266] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:44,015 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:45:44,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-09-16 10:45:44,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941961586] [2022-09-16 10:45:44,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:44,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-09-16 10:45:44,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:44,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-09-16 10:45:44,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2022-09-16 10:45:44,017 INFO L87 Difference]: Start difference. First operand 167212 states and 328878 transitions. Second operand has 34 states, 34 states have (on average 14.529411764705882) internal successors, (494), 34 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:46,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:46,834 INFO L93 Difference]: Finished difference Result 463244 states and 909498 transitions. [2022-09-16 10:45:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:45:46,835 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 14.529411764705882) internal successors, (494), 34 states have internal predecessors, (494), 0 states have call successors, (0), 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 541 [2022-09-16 10:45:46,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:48,549 INFO L225 Difference]: With dead ends: 463244 [2022-09-16 10:45:48,549 INFO L226 Difference]: Without dead ends: 463244 [2022-09-16 10:45:48,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1140 GetRequests, 1071 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1152, Invalid=3818, Unknown=0, NotChecked=0, Total=4970 [2022-09-16 10:45:48,551 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1740 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:48,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 2019 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:45:49,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463244 states. [2022-09-16 10:45:53,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463244 to 237081. [2022-09-16 10:45:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237081 states, 237079 states have (on average 1.9661378696552625) internal successors, (466130), 237080 states have internal predecessors, (466130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237081 states to 237081 states and 466130 transitions. [2022-09-16 10:45:54,917 INFO L78 Accepts]: Start accepts. Automaton has 237081 states and 466130 transitions. Word has length 541 [2022-09-16 10:45:54,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:54,918 INFO L495 AbstractCegarLoop]: Abstraction has 237081 states and 466130 transitions. [2022-09-16 10:45:54,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 14.529411764705882) internal successors, (494), 34 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:54,918 INFO L276 IsEmpty]: Start isEmpty. Operand 237081 states and 466130 transitions. [2022-09-16 10:45:55,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-09-16 10:45:55,494 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:55,494 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 14, 14, 14, 14, 14, 14, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:55,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-09-16 10:45:55,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:55,711 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:45:55,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:55,713 INFO L85 PathProgramCache]: Analyzing trace with hash -354883073, now seen corresponding path program 8 times [2022-09-16 10:45:55,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:55,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968439172] [2022-09-16 10:45:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:55,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:56,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4943 backedges. 2184 proven. 2168 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-09-16 10:45:56,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:56,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968439172] [2022-09-16 10:45:56,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968439172] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:56,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196484217] [2022-09-16 10:45:56,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:45:56,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:56,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:56,113 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) [2022-09-16 10:45:56,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-09-16 10:45:56,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:45:56,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:45:56,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 32 conjunts are in the unsatisfiable core [2022-09-16 10:45:56,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4943 backedges. 176 proven. 4096 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-09-16 10:45:56,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 4943 backedges. 176 proven. 4096 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-09-16 10:45:57,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196484217] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:57,722 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:45:57,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 60 [2022-09-16 10:45:57,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093176595] [2022-09-16 10:45:57,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:57,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-09-16 10:45:57,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:57,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-09-16 10:45:57,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=875, Invalid=2665, Unknown=0, NotChecked=0, Total=3540 [2022-09-16 10:45:57,724 INFO L87 Difference]: Start difference. First operand 237081 states and 466130 transitions. Second operand has 60 states, 60 states have (on average 12.733333333333333) internal successors, (764), 60 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:02,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:02,212 INFO L93 Difference]: Finished difference Result 574997 states and 1127395 transitions. [2022-09-16 10:46:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-09-16 10:46:02,212 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 12.733333333333333) internal successors, (764), 60 states have internal predecessors, (764), 0 states have call successors, (0), 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 544 [2022-09-16 10:46:02,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:03,984 INFO L225 Difference]: With dead ends: 574997 [2022-09-16 10:46:03,984 INFO L226 Difference]: Without dead ends: 574997 [2022-09-16 10:46:03,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1061 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4310 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=4275, Invalid=12237, Unknown=0, NotChecked=0, Total=16512 [2022-09-16 10:46:03,988 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 4032 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4032 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:03,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4032 Valid, 3004 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:46:04,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574997 states. [2022-09-16 10:46:10,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574997 to 283138. [2022-09-16 10:46:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283138 states, 283136 states have (on average 1.9669840641952985) internal successors, (556924), 283137 states have internal predecessors, (556924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:11,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283138 states to 283138 states and 556924 transitions. [2022-09-16 10:46:11,434 INFO L78 Accepts]: Start accepts. Automaton has 283138 states and 556924 transitions. Word has length 544 [2022-09-16 10:46:11,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:11,435 INFO L495 AbstractCegarLoop]: Abstraction has 283138 states and 556924 transitions. [2022-09-16 10:46:11,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 12.733333333333333) internal successors, (764), 60 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:11,435 INFO L276 IsEmpty]: Start isEmpty. Operand 283138 states and 556924 transitions. [2022-09-16 10:46:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2022-09-16 10:46:12,047 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:12,047 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 13, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:12,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-09-16 10:46:12,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-09-16 10:46:12,249 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:46:12,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:12,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2137325564, now seen corresponding path program 2 times [2022-09-16 10:46:12,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:12,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313586586] [2022-09-16 10:46:12,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:12,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4735 backedges. 2324 proven. 1081 refuted. 0 times theorem prover too weak. 1330 trivial. 0 not checked. [2022-09-16 10:46:12,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:12,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313586586] [2022-09-16 10:46:12,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313586586] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:46:12,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827665924] [2022-09-16 10:46:12,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:46:12,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:46:12,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:46:12,572 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) [2022-09-16 10:46:12,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-09-16 10:46:12,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:46:12,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:46:12,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 26 conjunts are in the unsatisfiable core [2022-09-16 10:46:12,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:46:13,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4735 backedges. 176 proven. 2929 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2022-09-16 10:46:13,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:46:13,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4735 backedges. 176 proven. 2929 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2022-09-16 10:46:13,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827665924] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:46:13,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:46:13,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 42 [2022-09-16 10:46:13,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428548412] [2022-09-16 10:46:13,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:46:13,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-09-16 10:46:13,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:13,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-09-16 10:46:13,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:46:13,683 INFO L87 Difference]: Start difference. First operand 283138 states and 556924 transitions. Second operand has 42 states, 42 states have (on average 14.0) internal successors, (588), 42 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:19,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:19,538 INFO L93 Difference]: Finished difference Result 812164 states and 1594690 transitions. [2022-09-16 10:46:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-09-16 10:46:19,538 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 14.0) internal successors, (588), 42 states have internal predecessors, (588), 0 states have call successors, (0), 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 551 [2022-09-16 10:46:19,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:23,162 INFO L225 Difference]: With dead ends: 812164 [2022-09-16 10:46:23,163 INFO L226 Difference]: Without dead ends: 812164 [2022-09-16 10:46:23,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1175 GetRequests, 1087 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2181 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1874, Invalid=6136, Unknown=0, NotChecked=0, Total=8010 [2022-09-16 10:46:23,164 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 2094 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:23,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 2204 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:46:24,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812164 states. [2022-09-16 10:46:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812164 to 566292. [2022-09-16 10:46:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566292 states, 566290 states have (on average 1.967933391018736) internal successors, (1114421), 566291 states have internal predecessors, (1114421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566292 states to 566292 states and 1114421 transitions. [2022-09-16 10:46:44,321 INFO L78 Accepts]: Start accepts. Automaton has 566292 states and 1114421 transitions. Word has length 551 [2022-09-16 10:46:44,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:44,330 INFO L495 AbstractCegarLoop]: Abstraction has 566292 states and 1114421 transitions. [2022-09-16 10:46:44,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 14.0) internal successors, (588), 42 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:44,330 INFO L276 IsEmpty]: Start isEmpty. Operand 566292 states and 1114421 transitions. [2022-09-16 10:46:45,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-09-16 10:46:45,419 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:45,419 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 17, 17, 17, 17, 17, 17, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:45,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-09-16 10:46:45,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:46:45,624 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:46:45,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:45,625 INFO L85 PathProgramCache]: Analyzing trace with hash -453021016, now seen corresponding path program 9 times [2022-09-16 10:46:45,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:45,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490129757] [2022-09-16 10:46:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:45,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 1701 proven. 3224 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-09-16 10:46:46,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:46,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490129757] [2022-09-16 10:46:46,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490129757] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:46:46,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150982468] [2022-09-16 10:46:46,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 10:46:46,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:46:46,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:46:46,126 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) [2022-09-16 10:46:46,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-09-16 10:46:46,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-09-16 10:46:46,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:46:46,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 38 conjunts are in the unsatisfiable core [2022-09-16 10:46:46,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:46:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 176 proven. 4699 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-09-16 10:46:47,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:46:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 176 proven. 4699 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-09-16 10:46:48,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150982468] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:46:48,170 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:46:48,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 72 [2022-09-16 10:46:48,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633087447] [2022-09-16 10:46:48,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:46:48,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-09-16 10:46:48,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:48,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-09-16 10:46:48,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1265, Invalid=3847, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:46:48,173 INFO L87 Difference]: Start difference. First operand 566292 states and 1114421 transitions. Second operand has 72 states, 72 states have (on average 12.527777777777779) internal successors, (902), 72 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:54,882 INFO L93 Difference]: Finished difference Result 934982 states and 1834775 transitions. [2022-09-16 10:46:54,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-09-16 10:46:54,882 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 12.527777777777779) internal successors, (902), 72 states have internal predecessors, (902), 0 states have call successors, (0), 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 559 [2022-09-16 10:46:54,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:58,089 INFO L225 Difference]: With dead ends: 934982 [2022-09-16 10:46:58,090 INFO L226 Difference]: Without dead ends: 934982 [2022-09-16 10:46:58,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1085 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6549 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=6345, Invalid=18147, Unknown=0, NotChecked=0, Total=24492 [2022-09-16 10:46:58,091 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 4728 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:58,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4728 Valid, 3897 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:46:59,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934982 states. [2022-09-16 10:47:14,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934982 to 516690. [2022-09-16 10:47:15,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516690 states, 516688 states have (on average 1.9681200260118292) internal successors, (1016904), 516689 states have internal predecessors, (1016904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:17,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516690 states to 516690 states and 1016904 transitions. [2022-09-16 10:47:17,432 INFO L78 Accepts]: Start accepts. Automaton has 516690 states and 1016904 transitions. Word has length 559 [2022-09-16 10:47:17,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:17,432 INFO L495 AbstractCegarLoop]: Abstraction has 516690 states and 1016904 transitions. [2022-09-16 10:47:17,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 12.527777777777779) internal successors, (902), 72 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:17,432 INFO L276 IsEmpty]: Start isEmpty. Operand 516690 states and 1016904 transitions. [2022-09-16 10:47:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2022-09-16 10:47:18,260 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:18,261 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 13, 13, 13, 13, 13, 13, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:18,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-09-16 10:47:18,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:18,476 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:47:18,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:18,478 INFO L85 PathProgramCache]: Analyzing trace with hash -149790915, now seen corresponding path program 3 times [2022-09-16 10:47:18,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:18,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863348975] [2022-09-16 10:47:18,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:18,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2273 proven. 1861 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-09-16 10:47:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863348975] [2022-09-16 10:47:18,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863348975] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:47:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536343943] [2022-09-16 10:47:18,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 10:47:18,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:18,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:47:18,783 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) [2022-09-16 10:47:18,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-09-16 10:47:19,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-09-16 10:47:19,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:47:19,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 47 conjunts are in the unsatisfiable core [2022-09-16 10:47:19,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:47:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:20,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:47:22,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:22,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536343943] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:47:22,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:47:22,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 47, 47] total 119 [2022-09-16 10:47:22,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927417631] [2022-09-16 10:47:22,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:47:22,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-09-16 10:47:22,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:22,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-09-16 10:47:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2427, Invalid=11615, Unknown=0, NotChecked=0, Total=14042 [2022-09-16 10:47:22,749 INFO L87 Difference]: Start difference. First operand 516690 states and 1016904 transitions. Second operand has 119 states, 119 states have (on average 12.067226890756302) internal successors, (1436), 119 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:05,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:52:05,732 INFO L93 Difference]: Finished difference Result 1908869 states and 3759497 transitions. [2022-09-16 10:52:05,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2004 states. [2022-09-16 10:52:05,733 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 12.067226890756302) internal successors, (1436), 119 states have internal predecessors, (1436), 0 states have call successors, (0), 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 566 [2022-09-16 10:52:05,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:52:12,119 INFO L225 Difference]: With dead ends: 1908869 [2022-09-16 10:52:12,120 INFO L226 Difference]: Without dead ends: 1906013 [2022-09-16 10:52:12,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3113 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 2067 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2281774 ImplicationChecksByTransitivity, 111.2s TimeCoverageRelationStatistics Valid=621134, Invalid=3657558, Unknown=0, NotChecked=0, Total=4278692 [2022-09-16 10:52:12,625 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 42393 mSDsluCounter, 21525 mSDsCounter, 0 mSdLazyCounter, 7719 mSolverCounterSat, 1402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42393 SdHoareTripleChecker+Valid, 21665 SdHoareTripleChecker+Invalid, 9121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1402 IncrementalHoareTripleChecker+Valid, 7719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:52:12,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42393 Valid, 21665 Invalid, 9121 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1402 Valid, 7719 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-09-16 10:52:14,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906013 states.