/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:12:03,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:12:03,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:12:03,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:12:03,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:12:03,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:12:03,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:12:03,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:12:03,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:12:03,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:12:03,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:12:03,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:12:03,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:12:03,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:12:03,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:12:03,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:12:03,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:12:03,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:12:03,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:12:03,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:12:03,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:12:03,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:12:03,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:12:03,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:12:03,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:12:03,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:12:03,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:12:03,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:12:03,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:12:03,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:12:03,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:12:03,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:12:03,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:12:03,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:12:03,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:12:03,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:12:03,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:12:03,972 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:12:03,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:12:03,972 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:12:03,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:12:03,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:12:03,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:12:03,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:12:03,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:12:03,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:12:03,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:12:03,974 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:12:03,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:12:03,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:12:03,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:12:03,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:12:03,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:12:03,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:12:03,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:12:03,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:12:03,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:12:03,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:12:03,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:12:03,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:12:03,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:12:03,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:12:03,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:12:04,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:12:04,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:12:04,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:12:04,369 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:12:04,370 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:12:04,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2022-10-16 11:12:04,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8792cd0d2/d2c706ff26674b6fb1fe8df35eabb24e/FLAG115120e70 [2022-10-16 11:12:05,173 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:12:05,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2022-10-16 11:12:05,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8792cd0d2/d2c706ff26674b6fb1fe8df35eabb24e/FLAG115120e70 [2022-10-16 11:12:05,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8792cd0d2/d2c706ff26674b6fb1fe8df35eabb24e [2022-10-16 11:12:05,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:12:05,492 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:12:05,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:12:05,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:12:05,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:12:05,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:12:05" (1/1) ... [2022-10-16 11:12:05,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@afbc548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:05, skipping insertion in model container [2022-10-16 11:12:05,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:12:05" (1/1) ... [2022-10-16 11:12:05,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:12:05,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:12:05,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:12:05,941 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:12:06,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:12:06,049 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:12:06,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06 WrapperNode [2022-10-16 11:12:06,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:12:06,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:12:06,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:12:06,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:12:06,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,105 INFO L138 Inliner]: procedures = 116, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 96 [2022-10-16 11:12:06,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:12:06,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:12:06,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:12:06,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:12:06,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,137 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:12:06,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:12:06,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:12:06,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:12:06,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (1/1) ... [2022-10-16 11:12:06,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:12:06,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:06,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:12:06,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:12:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:12:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:12:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:12:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:12:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:12:06,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:12:06,430 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:12:06,433 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:12:06,659 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:12:06,667 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:12:06,667 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 11:12:06,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:12:06 BoogieIcfgContainer [2022-10-16 11:12:06,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:12:06,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:12:06,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:12:06,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:12:06,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:12:05" (1/3) ... [2022-10-16 11:12:06,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da36eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:12:06, skipping insertion in model container [2022-10-16 11:12:06,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:12:06" (2/3) ... [2022-10-16 11:12:06,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da36eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:12:06, skipping insertion in model container [2022-10-16 11:12:06,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:12:06" (3/3) ... [2022-10-16 11:12:06,681 INFO L112 eAbstractionObserver]: Analyzing ICFG reverse_array_unsafe.i [2022-10-16 11:12:06,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:12:06,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 11:12:06,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:12:06,776 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;@791bbb5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:12:06,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 11:12:06,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 41 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 11:12:06,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:06,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 11:12:06,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:06,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:06,832 INFO L85 PathProgramCache]: Analyzing trace with hash 28693891, now seen corresponding path program 1 times [2022-10-16 11:12:06,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:06,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594393291] [2022-10-16 11:12:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:06,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:07,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:07,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594393291] [2022-10-16 11:12:07,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594393291] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:07,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:07,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:12:07,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129425161] [2022-10-16 11:12:07,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:07,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:07,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:07,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:07,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:07,162 INFO L87 Difference]: Start difference. First operand has 42 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 41 states have internal predecessors, (51), 0 states have call successors, (0), 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 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:07,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:07,310 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2022-10-16 11:12:07,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:12:07,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-16 11:12:07,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:07,323 INFO L225 Difference]: With dead ends: 104 [2022-10-16 11:12:07,324 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 11:12:07,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:12:07,332 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 42 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:07,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 91 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:07,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 11:12:07,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 53. [2022-10-16 11:12:07,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 52 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2022-10-16 11:12:07,375 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 5 [2022-10-16 11:12:07,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:07,375 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2022-10-16 11:12:07,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:07,376 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2022-10-16 11:12:07,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 11:12:07,376 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:07,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 11:12:07,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:12:07,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:07,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:07,378 INFO L85 PathProgramCache]: Analyzing trace with hash 28695813, now seen corresponding path program 1 times [2022-10-16 11:12:07,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:07,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934639397] [2022-10-16 11:12:07,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:07,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:07,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:07,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:07,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934639397] [2022-10-16 11:12:07,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934639397] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:07,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:07,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:12:07,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125864373] [2022-10-16 11:12:07,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:07,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:12:07,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:07,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:12:07,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:12:07,673 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:07,821 INFO L93 Difference]: Finished difference Result 78 states and 97 transitions. [2022-10-16 11:12:07,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:12:07,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-16 11:12:07,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:07,823 INFO L225 Difference]: With dead ends: 78 [2022-10-16 11:12:07,823 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 11:12:07,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:12:07,826 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 98 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:07,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 55 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:07,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 11:12:07,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 51. [2022-10-16 11:12:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.65) internal successors, (66), 50 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) [2022-10-16 11:12:07,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2022-10-16 11:12:07,838 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 5 [2022-10-16 11:12:07,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:07,838 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2022-10-16 11:12:07,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:07,839 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2022-10-16 11:12:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:12:07,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:07,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:12:07,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:12:07,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:07,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:07,841 INFO L85 PathProgramCache]: Analyzing trace with hash 889510666, now seen corresponding path program 1 times [2022-10-16 11:12:07,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:07,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693666838] [2022-10-16 11:12:07,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:07,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:07,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:07,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693666838] [2022-10-16 11:12:07,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693666838] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:07,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:07,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:12:07,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857884074] [2022-10-16 11:12:07,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:07,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:07,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:07,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:07,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:07,887 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:07,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:07,937 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2022-10-16 11:12:07,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:07,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 11:12:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:07,941 INFO L225 Difference]: With dead ends: 51 [2022-10-16 11:12:07,941 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 11:12:07,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:12:07,947 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:07,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:07,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 11:12:07,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 11:12:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 43 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2022-10-16 11:12:07,961 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 6 [2022-10-16 11:12:07,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:07,962 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2022-10-16 11:12:07,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:07,962 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2022-10-16 11:12:07,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:12:07,963 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:07,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:07,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:12:07,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:07,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:07,965 INFO L85 PathProgramCache]: Analyzing trace with hash 126991416, now seen corresponding path program 1 times [2022-10-16 11:12:07,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:07,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067725945] [2022-10-16 11:12:07,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:07,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:08,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:08,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067725945] [2022-10-16 11:12:08,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067725945] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:08,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:08,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:12:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257334619] [2022-10-16 11:12:08,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:08,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:08,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:08,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:08,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:08,042 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:08,086 INFO L93 Difference]: Finished difference Result 79 states and 102 transitions. [2022-10-16 11:12:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:08,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 11:12:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:08,091 INFO L225 Difference]: With dead ends: 79 [2022-10-16 11:12:08,091 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 11:12:08,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:12:08,096 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:08,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 83 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 11:12:08,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 52. [2022-10-16 11:12:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 51 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-10-16 11:12:08,121 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 8 [2022-10-16 11:12:08,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:08,121 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-10-16 11:12:08,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,122 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-10-16 11:12:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:12:08,127 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:08,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:08,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 11:12:08,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:08,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:08,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1416722535, now seen corresponding path program 1 times [2022-10-16 11:12:08,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:08,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525721125] [2022-10-16 11:12:08,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:08,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:08,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:08,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525721125] [2022-10-16 11:12:08,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525721125] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:08,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:08,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:12:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198251160] [2022-10-16 11:12:08,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:08,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:08,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:08,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:08,218 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:08,279 INFO L93 Difference]: Finished difference Result 103 states and 129 transitions. [2022-10-16 11:12:08,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:08,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:12:08,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:08,281 INFO L225 Difference]: With dead ends: 103 [2022-10-16 11:12:08,281 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 11:12:08,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:08,283 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 30 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:08,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 89 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:08,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 11:12:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 54. [2022-10-16 11:12:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 53 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2022-10-16 11:12:08,296 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 9 [2022-10-16 11:12:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:08,297 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-10-16 11:12:08,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,297 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-10-16 11:12:08,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:12:08,298 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:08,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:08,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 11:12:08,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:08,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:08,300 INFO L85 PathProgramCache]: Analyzing trace with hash 380174345, now seen corresponding path program 1 times [2022-10-16 11:12:08,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:08,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148230028] [2022-10-16 11:12:08,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:08,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:08,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:08,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148230028] [2022-10-16 11:12:08,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148230028] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:08,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:08,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:12:08,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791869935] [2022-10-16 11:12:08,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:08,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:08,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:08,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:08,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:08,411 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:08,457 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2022-10-16 11:12:08,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:08,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 11:12:08,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:08,459 INFO L225 Difference]: With dead ends: 71 [2022-10-16 11:12:08,459 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 11:12:08,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:12:08,461 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 34 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:08,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 73 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:08,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 11:12:08,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-10-16 11:12:08,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 53 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2022-10-16 11:12:08,473 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 11 [2022-10-16 11:12:08,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:08,473 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-10-16 11:12:08,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,474 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-10-16 11:12:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:12:08,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:08,475 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:08,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 11:12:08,475 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash 864444660, now seen corresponding path program 1 times [2022-10-16 11:12:08,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:08,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111830689] [2022-10-16 11:12:08,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:08,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:08,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:08,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:08,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111830689] [2022-10-16 11:12:08,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111830689] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:08,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614838216] [2022-10-16 11:12:08,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:08,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:08,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:08,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:08,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:12:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:08,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:08,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:08,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:08,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:08,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614838216] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:08,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:08,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 11:12:08,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323467829] [2022-10-16 11:12:08,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:08,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:12:08,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:08,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:12:08,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:12:08,762 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:08,838 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2022-10-16 11:12:08,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:12:08,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 11:12:08,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:08,840 INFO L225 Difference]: With dead ends: 83 [2022-10-16 11:12:08,840 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 11:12:08,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:12:08,842 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 34 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:08,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 101 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:08,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 11:12:08,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 51. [2022-10-16 11:12:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.441860465116279) internal successors, (62), 50 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2022-10-16 11:12:08,853 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 12 [2022-10-16 11:12:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:08,854 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2022-10-16 11:12:08,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:08,854 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2022-10-16 11:12:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:12:08,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:08,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:08,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:09,069 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 [2022-10-16 11:12:09,070 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1099495718, now seen corresponding path program 1 times [2022-10-16 11:12:09,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:09,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049145588] [2022-10-16 11:12:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:09,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:09,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:09,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049145588] [2022-10-16 11:12:09,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049145588] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:09,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:09,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:12:09,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362282559] [2022-10-16 11:12:09,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:09,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:09,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:09,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:09,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:09,175 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:09,204 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2022-10-16 11:12:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:09,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 11:12:09,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:09,206 INFO L225 Difference]: With dead ends: 51 [2022-10-16 11:12:09,206 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 11:12:09,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:09,211 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:09,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 75 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:09,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 11:12:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-10-16 11:12:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 48 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2022-10-16 11:12:09,240 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 12 [2022-10-16 11:12:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:09,241 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2022-10-16 11:12:09,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,241 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2022-10-16 11:12:09,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:12:09,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:09,245 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:09,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 11:12:09,245 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:09,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:09,246 INFO L85 PathProgramCache]: Analyzing trace with hash 471417650, now seen corresponding path program 1 times [2022-10-16 11:12:09,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:09,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090734521] [2022-10-16 11:12:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:09,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:09,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:09,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090734521] [2022-10-16 11:12:09,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090734521] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:09,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088477875] [2022-10-16 11:12:09,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:09,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:09,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:09,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:09,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:12:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:09,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:09,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:09,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:09,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088477875] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:09,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:09,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:12:09,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999731448] [2022-10-16 11:12:09,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:09,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:12:09,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:09,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:12:09,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:12:09,488 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:09,615 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2022-10-16 11:12:09,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:12:09,615 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 11:12:09,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:09,616 INFO L225 Difference]: With dead ends: 120 [2022-10-16 11:12:09,617 INFO L226 Difference]: Without dead ends: 119 [2022-10-16 11:12:09,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:12:09,618 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 122 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:09,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 171 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:09,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-10-16 11:12:09,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 60. [2022-10-16 11:12:09,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 59 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2022-10-16 11:12:09,629 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 12 [2022-10-16 11:12:09,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:09,629 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2022-10-16 11:12:09,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,630 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2022-10-16 11:12:09,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:12:09,630 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:09,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:09,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:09,845 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,SelfDestructingSolverStorable8 [2022-10-16 11:12:09,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:09,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:09,847 INFO L85 PathProgramCache]: Analyzing trace with hash 275377150, now seen corresponding path program 1 times [2022-10-16 11:12:09,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:09,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641632616] [2022-10-16 11:12:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:09,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:09,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:09,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641632616] [2022-10-16 11:12:09,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641632616] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:09,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:09,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:12:09,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318107178] [2022-10-16 11:12:09,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:09,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:09,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:09,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:09,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:09,889 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:09,920 INFO L93 Difference]: Finished difference Result 81 states and 99 transitions. [2022-10-16 11:12:09,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:09,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 11:12:09,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:09,924 INFO L225 Difference]: With dead ends: 81 [2022-10-16 11:12:09,924 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 11:12:09,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:12:09,927 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 11 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:09,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 71 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 11:12:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 74. [2022-10-16 11:12:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 68 states have (on average 1.338235294117647) internal successors, (91), 73 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2022-10-16 11:12:09,954 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 13 [2022-10-16 11:12:09,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:09,954 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2022-10-16 11:12:09,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:09,955 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2022-10-16 11:12:09,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:12:09,959 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:09,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:09,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 11:12:09,960 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1728993835, now seen corresponding path program 1 times [2022-10-16 11:12:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:09,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855078469] [2022-10-16 11:12:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:09,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:12:10,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:10,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855078469] [2022-10-16 11:12:10,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855078469] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:10,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:10,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:12:10,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315846129] [2022-10-16 11:12:10,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:10,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:10,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:10,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:10,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:10,036 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:10,097 INFO L93 Difference]: Finished difference Result 134 states and 165 transitions. [2022-10-16 11:12:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:10,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 11:12:10,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:10,098 INFO L225 Difference]: With dead ends: 134 [2022-10-16 11:12:10,098 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 11:12:10,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:10,100 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 33 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:10,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 62 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:10,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 11:12:10,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 94. [2022-10-16 11:12:10,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 93 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:10,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2022-10-16 11:12:10,111 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 13 [2022-10-16 11:12:10,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:10,112 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2022-10-16 11:12:10,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2022-10-16 11:12:10,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:12:10,113 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:10,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:10,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 11:12:10,113 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:10,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1729045325, now seen corresponding path program 1 times [2022-10-16 11:12:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:10,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955340640] [2022-10-16 11:12:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:10,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:10,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:10,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955340640] [2022-10-16 11:12:10,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955340640] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:10,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637463552] [2022-10-16 11:12:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:10,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:10,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:10,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:10,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:12:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:10,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:10,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:10,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:10,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637463552] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:10,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:10,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:12:10,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377610869] [2022-10-16 11:12:10,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:10,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:12:10,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:10,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:12:10,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:12:10,273 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:10,315 INFO L93 Difference]: Finished difference Result 111 states and 138 transitions. [2022-10-16 11:12:10,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:12:10,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 11:12:10,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:10,316 INFO L225 Difference]: With dead ends: 111 [2022-10-16 11:12:10,316 INFO L226 Difference]: Without dead ends: 110 [2022-10-16 11:12:10,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:12:10,318 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 41 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:10,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 124 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:10,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-16 11:12:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2022-10-16 11:12:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2840909090909092) internal successors, (113), 92 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:10,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2022-10-16 11:12:10,329 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 13 [2022-10-16 11:12:10,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:10,329 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2022-10-16 11:12:10,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:10,330 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2022-10-16 11:12:10,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 11:12:10,330 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:10,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:10,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:10,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:10,547 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:10,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1391116083, now seen corresponding path program 1 times [2022-10-16 11:12:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:10,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095517187] [2022-10-16 11:12:10,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:10,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:10,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:10,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:10,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095517187] [2022-10-16 11:12:10,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095517187] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:10,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881146692] [2022-10-16 11:12:10,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:10,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:10,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:10,670 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:10,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:12:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:10,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 11:12:10,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:10,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:10,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:10,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881146692] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:10,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:10,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2022-10-16 11:12:10,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768629249] [2022-10-16 11:12:10,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:10,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 11:12:10,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:10,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 11:12:10,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-10-16 11:12:10,853 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:11,063 INFO L93 Difference]: Finished difference Result 149 states and 179 transitions. [2022-10-16 11:12:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 11:12:11,064 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 11:12:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:11,065 INFO L225 Difference]: With dead ends: 149 [2022-10-16 11:12:11,065 INFO L226 Difference]: Without dead ends: 112 [2022-10-16 11:12:11,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-10-16 11:12:11,066 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 59 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:11,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 141 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:11,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-10-16 11:12:11,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2022-10-16 11:12:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2613636363636365) internal successors, (111), 92 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2022-10-16 11:12:11,079 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 15 [2022-10-16 11:12:11,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:11,079 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2022-10-16 11:12:11,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:11,079 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2022-10-16 11:12:11,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 11:12:11,080 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:11,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:11,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:11,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:11,295 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:11,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash 187085168, now seen corresponding path program 1 times [2022-10-16 11:12:11,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:11,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18318316] [2022-10-16 11:12:11,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:11,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:11,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:12:11,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:11,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18318316] [2022-10-16 11:12:11,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18318316] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:11,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314457725] [2022-10-16 11:12:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:11,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:11,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:11,479 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:11,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:12:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:11,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:12:11,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:11,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:12:11,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:11,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314457725] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:11,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:11,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-16 11:12:11,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527342957] [2022-10-16 11:12:11,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:11,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:11,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:11,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:11,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:12:11,647 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:11,686 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2022-10-16 11:12:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:11,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 11:12:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:11,690 INFO L225 Difference]: With dead ends: 114 [2022-10-16 11:12:11,690 INFO L226 Difference]: Without dead ends: 109 [2022-10-16 11:12:11,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:12:11,692 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 35 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:11,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 35 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:11,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-16 11:12:11,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 91. [2022-10-16 11:12:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 86 states have (on average 1.2674418604651163) internal successors, (109), 90 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:11,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 109 transitions. [2022-10-16 11:12:11,704 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 109 transitions. Word has length 18 [2022-10-16 11:12:11,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:11,705 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 109 transitions. [2022-10-16 11:12:11,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:11,705 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 109 transitions. [2022-10-16 11:12:11,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 11:12:11,706 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:11,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:11,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:11,920 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,SelfDestructingSolverStorable13 [2022-10-16 11:12:11,921 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:11,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:11,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1104445551, now seen corresponding path program 2 times [2022-10-16 11:12:11,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:11,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268123730] [2022-10-16 11:12:11,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:11,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:12:11,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:11,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268123730] [2022-10-16 11:12:11,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268123730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:11,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:11,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:12:11,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794942291] [2022-10-16 11:12:11,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:11,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:12:11,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:11,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:12:11,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:12:11,995 INFO L87 Difference]: Start difference. First operand 91 states and 109 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:12,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:12,057 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2022-10-16 11:12:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:12:12,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 11:12:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:12,058 INFO L225 Difference]: With dead ends: 99 [2022-10-16 11:12:12,059 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 11:12:12,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:12:12,060 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 52 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:12,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 82 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:12,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 11:12:12,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2022-10-16 11:12:12,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 86 states have (on average 1.255813953488372) internal successors, (108), 90 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:12,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 108 transitions. [2022-10-16 11:12:12,071 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 108 transitions. Word has length 19 [2022-10-16 11:12:12,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:12,071 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 108 transitions. [2022-10-16 11:12:12,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:12,072 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 108 transitions. [2022-10-16 11:12:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:12:12,072 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:12,072 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:12,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 11:12:12,073 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:12,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:12,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1394416487, now seen corresponding path program 1 times [2022-10-16 11:12:12,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:12,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97580808] [2022-10-16 11:12:12,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:12,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:12,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:12:12,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:12,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97580808] [2022-10-16 11:12:12,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97580808] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:12,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121452646] [2022-10-16 11:12:12,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:12,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:12,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:12,146 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:12,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:12:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:12,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:12,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:12,292 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:12:12,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:12,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121452646] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:12,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:12,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 11:12:12,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519283879] [2022-10-16 11:12:12,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:12,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:12:12,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:12,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:12:12,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:12:12,295 INFO L87 Difference]: Start difference. First operand 91 states and 108 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:12,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:12,357 INFO L93 Difference]: Finished difference Result 111 states and 130 transitions. [2022-10-16 11:12:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:12:12,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-10-16 11:12:12,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:12,358 INFO L225 Difference]: With dead ends: 111 [2022-10-16 11:12:12,359 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 11:12:12,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:12:12,360 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 10 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:12,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 56 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 11:12:12,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-10-16 11:12:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 80 states have (on average 1.2625) internal successors, (101), 84 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:12,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2022-10-16 11:12:12,370 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 20 [2022-10-16 11:12:12,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:12,370 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2022-10-16 11:12:12,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:12,371 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2022-10-16 11:12:12,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:12:12,372 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:12,372 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:12,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:12,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:12:12,587 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:12,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:12,588 INFO L85 PathProgramCache]: Analyzing trace with hash -599728219, now seen corresponding path program 1 times [2022-10-16 11:12:12,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:12,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820628700] [2022-10-16 11:12:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:12,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:12:12,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:12,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820628700] [2022-10-16 11:12:12,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820628700] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:12,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708359258] [2022-10-16 11:12:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:12,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:12,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:12,648 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:12,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 11:12:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:12,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:12:12,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:12,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:12,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:12,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708359258] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:12,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:12,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 16 [2022-10-16 11:12:12,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011594234] [2022-10-16 11:12:12,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:12,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:12:12,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:12,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:12:12,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:12:12,887 INFO L87 Difference]: Start difference. First operand 85 states and 101 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:13,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:13,137 INFO L93 Difference]: Finished difference Result 125 states and 148 transitions. [2022-10-16 11:12:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:12:13,138 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 11:12:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:13,139 INFO L225 Difference]: With dead ends: 125 [2022-10-16 11:12:13,139 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 11:12:13,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:12:13,140 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 58 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:13,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 106 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:13,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 11:12:13,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 97. [2022-10-16 11:12:13,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 92 states have (on average 1.2391304347826086) internal successors, (114), 96 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:13,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 114 transitions. [2022-10-16 11:12:13,153 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 114 transitions. Word has length 20 [2022-10-16 11:12:13,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:13,154 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 114 transitions. [2022-10-16 11:12:13,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:13,154 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 114 transitions. [2022-10-16 11:12:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:12:13,155 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:13,155 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:13,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-16 11:12:13,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:13,371 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:13,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:13,372 INFO L85 PathProgramCache]: Analyzing trace with hash 194465894, now seen corresponding path program 2 times [2022-10-16 11:12:13,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:13,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898595152] [2022-10-16 11:12:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:13,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:13,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:13,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898595152] [2022-10-16 11:12:13,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898595152] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:13,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893750996] [2022-10-16 11:12:13,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:12:13,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:13,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:13,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:13,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 11:12:13,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:12:13,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:12:13,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:12:13,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:13,656 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:12:13,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:12:13,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893750996] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:13,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:13,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 11:12:13,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126972974] [2022-10-16 11:12:13,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:13,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:12:13,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:13,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:12:13,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:12:13,700 INFO L87 Difference]: Start difference. First operand 97 states and 114 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:14,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:14,030 INFO L93 Difference]: Finished difference Result 305 states and 364 transitions. [2022-10-16 11:12:14,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 11:12:14,031 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 11:12:14,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:14,033 INFO L225 Difference]: With dead ends: 305 [2022-10-16 11:12:14,033 INFO L226 Difference]: Without dead ends: 290 [2022-10-16 11:12:14,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=297, Invalid=759, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 11:12:14,035 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 212 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:14,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 146 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:14,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-10-16 11:12:14,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 95. [2022-10-16 11:12:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 90 states have (on average 1.2333333333333334) internal successors, (111), 94 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 111 transitions. [2022-10-16 11:12:14,049 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 111 transitions. Word has length 24 [2022-10-16 11:12:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:14,049 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 111 transitions. [2022-10-16 11:12:14,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 111 transitions. [2022-10-16 11:12:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 11:12:14,054 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:14,054 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:14,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:14,269 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,SelfDestructingSolverStorable17 [2022-10-16 11:12:14,271 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:14,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2038395161, now seen corresponding path program 1 times [2022-10-16 11:12:14,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:14,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639004483] [2022-10-16 11:12:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:14,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:12:14,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:14,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639004483] [2022-10-16 11:12:14,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639004483] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:14,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488031955] [2022-10-16 11:12:14,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:14,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:14,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:14,341 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:14,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 11:12:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:14,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:14,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:12:14,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:14,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488031955] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:14,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:14,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:12:14,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148684294] [2022-10-16 11:12:14,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:14,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:12:14,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:14,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:12:14,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:12:14,436 INFO L87 Difference]: Start difference. First operand 95 states and 111 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:14,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:14,482 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2022-10-16 11:12:14,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:12:14,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 11:12:14,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:14,484 INFO L225 Difference]: With dead ends: 95 [2022-10-16 11:12:14,484 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 11:12:14,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:12:14,485 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 17 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:14,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 100 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:14,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 11:12:14,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-10-16 11:12:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 1.211111111111111) internal successors, (109), 93 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 109 transitions. [2022-10-16 11:12:14,498 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 109 transitions. Word has length 25 [2022-10-16 11:12:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:14,499 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 109 transitions. [2022-10-16 11:12:14,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 109 transitions. [2022-10-16 11:12:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 11:12:14,500 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:14,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:14,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:14,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:14,714 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:14,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash -605906300, now seen corresponding path program 2 times [2022-10-16 11:12:14,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:14,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124671063] [2022-10-16 11:12:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:14,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:14,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:14,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124671063] [2022-10-16 11:12:14,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124671063] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:14,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687704622] [2022-10-16 11:12:14,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:12:14,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:14,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:14,877 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:14,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 11:12:14,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:12:14,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:12:14,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:12:14,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:14,989 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 11:12:14,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 11:12:15,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687704622] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:15,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:15,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-10-16 11:12:15,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236390145] [2022-10-16 11:12:15,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:15,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:12:15,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:15,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:12:15,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:12:15,042 INFO L87 Difference]: Start difference. First operand 94 states and 109 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:15,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:15,406 INFO L93 Difference]: Finished difference Result 148 states and 171 transitions. [2022-10-16 11:12:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 11:12:15,407 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 11:12:15,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:15,408 INFO L225 Difference]: With dead ends: 148 [2022-10-16 11:12:15,408 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 11:12:15,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=816, Unknown=0, NotChecked=0, Total=992 [2022-10-16 11:12:15,411 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 98 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:15,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 98 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:12:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 11:12:15,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2022-10-16 11:12:15,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 82 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:15,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 95 transitions. [2022-10-16 11:12:15,424 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 95 transitions. Word has length 29 [2022-10-16 11:12:15,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:15,424 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 95 transitions. [2022-10-16 11:12:15,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:15,425 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 95 transitions. [2022-10-16 11:12:15,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:12:15,425 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:15,426 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:15,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:15,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:15,640 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:15,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1248014340, now seen corresponding path program 1 times [2022-10-16 11:12:15,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:15,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800946300] [2022-10-16 11:12:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 11:12:15,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:15,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800946300] [2022-10-16 11:12:15,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800946300] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:15,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034364977] [2022-10-16 11:12:15,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:15,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:15,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:15,758 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:15,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 11:12:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:15,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 11:12:15,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 11:12:15,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:15,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034364977] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:15,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:15,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 12 [2022-10-16 11:12:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891458299] [2022-10-16 11:12:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:15,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:12:15,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:12:15,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:12:15,919 INFO L87 Difference]: Start difference. First operand 83 states and 95 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:16,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:16,016 INFO L93 Difference]: Finished difference Result 163 states and 186 transitions. [2022-10-16 11:12:16,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 11:12:16,016 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 11:12:16,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:16,017 INFO L225 Difference]: With dead ends: 163 [2022-10-16 11:12:16,017 INFO L226 Difference]: Without dead ends: 83 [2022-10-16 11:12:16,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:12:16,019 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:16,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 100 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-16 11:12:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-10-16 11:12:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 82 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2022-10-16 11:12:16,028 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 34 [2022-10-16 11:12:16,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:16,028 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2022-10-16 11:12:16,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2022-10-16 11:12:16,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:12:16,029 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:16,029 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:16,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:16,244 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,SelfDestructingSolverStorable20 [2022-10-16 11:12:16,245 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:16,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash -973254726, now seen corresponding path program 1 times [2022-10-16 11:12:16,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:16,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472721978] [2022-10-16 11:12:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:16,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:16,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:16,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472721978] [2022-10-16 11:12:16,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472721978] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:16,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604646419] [2022-10-16 11:12:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:16,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:16,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:16,453 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:16,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 11:12:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:16,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 11:12:16,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:16,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:16,821 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:16,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604646419] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:16,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:16,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-10-16 11:12:16,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506240239] [2022-10-16 11:12:16,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:16,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 11:12:16,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:16,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 11:12:16,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2022-10-16 11:12:16,824 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand has 32 states, 31 states have (on average 2.161290322580645) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:17,148 INFO L93 Difference]: Finished difference Result 378 states and 433 transitions. [2022-10-16 11:12:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 11:12:17,149 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.161290322580645) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 11:12:17,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:17,152 INFO L225 Difference]: With dead ends: 378 [2022-10-16 11:12:17,152 INFO L226 Difference]: Without dead ends: 377 [2022-10-16 11:12:17,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=602, Invalid=1468, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 11:12:17,155 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 521 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:17,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 274 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:17,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-10-16 11:12:17,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 115. [2022-10-16 11:12:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 114 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2022-10-16 11:12:17,171 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 34 [2022-10-16 11:12:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:17,172 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2022-10-16 11:12:17,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.161290322580645) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2022-10-16 11:12:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:12:17,174 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:17,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:17,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:17,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 11:12:17,388 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:17,389 INFO L85 PathProgramCache]: Analyzing trace with hash 91466732, now seen corresponding path program 1 times [2022-10-16 11:12:17,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:17,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20107647] [2022-10-16 11:12:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:17,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:12:17,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:17,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20107647] [2022-10-16 11:12:17,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20107647] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:17,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351435512] [2022-10-16 11:12:17,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:17,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:17,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:17,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:17,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 11:12:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:17,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 11:12:17,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:17,602 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:12:17,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:17,659 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:12:17,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351435512] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:17,660 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:17,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 11:12:17,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334650925] [2022-10-16 11:12:17,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:17,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:12:17,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:17,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:12:17,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:12:17,662 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:17,778 INFO L93 Difference]: Finished difference Result 194 states and 228 transitions. [2022-10-16 11:12:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:12:17,778 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 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 35 [2022-10-16 11:12:17,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:17,779 INFO L225 Difference]: With dead ends: 194 [2022-10-16 11:12:17,780 INFO L226 Difference]: Without dead ends: 193 [2022-10-16 11:12:17,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:12:17,781 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 69 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:17,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 176 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:17,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-10-16 11:12:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 171. [2022-10-16 11:12:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.2095808383233533) internal successors, (202), 170 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 202 transitions. [2022-10-16 11:12:17,799 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 202 transitions. Word has length 35 [2022-10-16 11:12:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:17,800 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 202 transitions. [2022-10-16 11:12:17,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 202 transitions. [2022-10-16 11:12:17,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 11:12:17,800 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:17,801 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:17,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:18,015 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,SelfDestructingSolverStorable22 [2022-10-16 11:12:18,016 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:18,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:18,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1960350781, now seen corresponding path program 1 times [2022-10-16 11:12:18,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:18,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54916198] [2022-10-16 11:12:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:18,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 28 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:18,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:18,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54916198] [2022-10-16 11:12:18,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54916198] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:18,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164076268] [2022-10-16 11:12:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:18,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:18,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:18,335 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:18,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 11:12:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:18,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 11:12:18,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:18,613 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 45 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:18,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 45 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:18,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164076268] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:18,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:18,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 38 [2022-10-16 11:12:18,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079562412] [2022-10-16 11:12:18,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:18,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 11:12:18,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:18,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 11:12:18,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1196, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 11:12:18,887 INFO L87 Difference]: Start difference. First operand 171 states and 202 transitions. Second operand has 38 states, 38 states have (on average 2.4210526315789473) internal successors, (92), 38 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:19,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:19,839 INFO L93 Difference]: Finished difference Result 277 states and 320 transitions. [2022-10-16 11:12:19,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-10-16 11:12:19,840 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.4210526315789473) internal successors, (92), 38 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-10-16 11:12:19,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:19,842 INFO L225 Difference]: With dead ends: 277 [2022-10-16 11:12:19,842 INFO L226 Difference]: Without dead ends: 272 [2022-10-16 11:12:19,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1055, Invalid=4201, Unknown=0, NotChecked=0, Total=5256 [2022-10-16 11:12:19,846 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 275 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:19,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 184 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:12:19,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-10-16 11:12:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 171. [2022-10-16 11:12:19,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.1916167664670658) internal successors, (199), 170 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:19,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 199 transitions. [2022-10-16 11:12:19,866 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 199 transitions. Word has length 45 [2022-10-16 11:12:19,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:19,866 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 199 transitions. [2022-10-16 11:12:19,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.4210526315789473) internal successors, (92), 38 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 199 transitions. [2022-10-16 11:12:19,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 11:12:19,867 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:19,867 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:19,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:20,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:20,082 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:20,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:20,083 INFO L85 PathProgramCache]: Analyzing trace with hash -57205716, now seen corresponding path program 2 times [2022-10-16 11:12:20,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:20,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803705991] [2022-10-16 11:12:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-16 11:12:20,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:20,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803705991] [2022-10-16 11:12:20,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803705991] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:20,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389625626] [2022-10-16 11:12:20,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:12:20,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:20,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:20,292 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:20,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:12:20,356 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:12:20,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:12:20,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:20,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:20,461 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-16 11:12:20,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-16 11:12:20,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389625626] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:20,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:20,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 17 [2022-10-16 11:12:20,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757596861] [2022-10-16 11:12:20,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:20,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:12:20,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:20,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:12:20,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:12:20,566 INFO L87 Difference]: Start difference. First operand 171 states and 199 transitions. Second operand has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:20,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:20,922 INFO L93 Difference]: Finished difference Result 220 states and 256 transitions. [2022-10-16 11:12:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 11:12:20,922 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-16 11:12:20,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:20,923 INFO L225 Difference]: With dead ends: 220 [2022-10-16 11:12:20,923 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 11:12:20,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 102 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=217, Invalid=1043, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 11:12:20,927 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 82 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:20,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 64 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:20,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 11:12:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-10-16 11:12:20,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.0151515151515151) internal successors, (67), 66 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:20,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2022-10-16 11:12:20,938 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 55 [2022-10-16 11:12:20,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:20,938 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2022-10-16 11:12:20,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2022-10-16 11:12:20,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 11:12:20,939 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:20,939 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:20,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:21,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:21,154 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:21,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1672947098, now seen corresponding path program 2 times [2022-10-16 11:12:21,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:21,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233526049] [2022-10-16 11:12:21,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:21,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:21,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:21,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233526049] [2022-10-16 11:12:21,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233526049] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:21,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171090580] [2022-10-16 11:12:21,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:12:21,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:21,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:21,970 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:21,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:12:22,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:12:22,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:12:22,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:22,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-10-16 11:12:22,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-10-16 11:12:22,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171090580] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:22,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:22,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 5, 5] total 35 [2022-10-16 11:12:22,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696573740] [2022-10-16 11:12:22,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:22,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 11:12:22,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:22,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 11:12:22,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 11:12:22,288 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand has 36 states, 35 states have (on average 2.1714285714285713) internal successors, (76), 36 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:22,994 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2022-10-16 11:12:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-16 11:12:22,995 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.1714285714285713) internal successors, (76), 36 states have internal predecessors, (76), 0 states have call successors, (0), 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 66 [2022-10-16 11:12:22,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:22,995 INFO L225 Difference]: With dead ends: 73 [2022-10-16 11:12:22,996 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 11:12:22,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1193, Invalid=3499, Unknown=0, NotChecked=0, Total=4692 [2022-10-16 11:12:22,999 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 111 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:23,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 10 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 11:12:23,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 11:12:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:23,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 11:12:23,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2022-10-16 11:12:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:23,001 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 11:12:23,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.1714285714285713) internal successors, (76), 36 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:23,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 11:12:23,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 11:12:23,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-10-16 11:12:23,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-10-16 11:12:23,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-10-16 11:12:23,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-10-16 11:12:23,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-10-16 11:12:23,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-10-16 11:12:23,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-10-16 11:12:23,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-10-16 11:12:23,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-10-16 11:12:23,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-10-16 11:12:23,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-10-16 11:12:23,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-10-16 11:12:23,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-10-16 11:12:23,222 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,SelfDestructingSolverStorable25 [2022-10-16 11:12:23,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.