/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/loops-crafted-1/Mono4_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:41:49,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:41:49,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:41:49,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:41:49,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:41:49,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:41:49,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:41:49,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:41:49,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:41:49,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:41:49,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:41:49,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:41:49,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:41:49,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:41:49,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:41:49,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:41:49,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:41:49,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:41:49,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:41:49,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:41:49,175 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 14:41:49,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:41:49,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:41:49,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:41:49,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:41:49,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:41:49,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:41:49,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:41:49,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:41:49,235 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:41:49,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:41:49,237 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:41:49,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:41:49,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:41:49,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:41:49,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:41:49,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:41:49,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:41:49,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:41:49,239 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:41:49,239 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:41:49,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:41:49,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:41:49,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:41:49,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:41:49,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:41:49,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:41:49,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:41:49,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:41:49,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:41:49,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:41:49,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:41:49,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:41:49,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:41:49,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:41:49,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:41:49,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:41:49,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:41:49,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:41:49,667 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:41:49,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/Mono4_1.c [2022-10-16 14:41:49,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919a68ae1/28d249da5d474c0d8591223799a953b4/FLAG39cecce40 [2022-10-16 14:41:50,305 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:41:50,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/Mono4_1.c [2022-10-16 14:41:50,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919a68ae1/28d249da5d474c0d8591223799a953b4/FLAG39cecce40 [2022-10-16 14:41:50,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919a68ae1/28d249da5d474c0d8591223799a953b4 [2022-10-16 14:41:50,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:41:50,678 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:41:50,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:41:50,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:41:50,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:41:50,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5786c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50, skipping insertion in model container [2022-10-16 14:41:50,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:41:50,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:41:50,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/Mono4_1.c[311,324] [2022-10-16 14:41:50,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:41:50,877 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:41:50,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/Mono4_1.c[311,324] [2022-10-16 14:41:50,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:41:50,911 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:41:50,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50 WrapperNode [2022-10-16 14:41:50,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:41:50,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:41:50,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:41:50,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:41:50,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,952 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-10-16 14:41:50,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:41:50,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:41:50,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:41:50,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:41:50,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,974 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:41:50,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:41:50,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:41:50,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:41:50,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (1/1) ... [2022-10-16 14:41:50,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:41:50,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:51,020 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 14:41:51,047 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 14:41:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:41:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:41:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:41:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:41:51,176 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:41:51,179 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:41:51,323 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:41:51,330 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:41:51,330 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:41:51,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:51 BoogieIcfgContainer [2022-10-16 14:41:51,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:41:51,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:41:51,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:41:51,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:41:51,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:41:50" (1/3) ... [2022-10-16 14:41:51,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c354c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:41:51, skipping insertion in model container [2022-10-16 14:41:51,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:50" (2/3) ... [2022-10-16 14:41:51,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c354c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:41:51, skipping insertion in model container [2022-10-16 14:41:51,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:51" (3/3) ... [2022-10-16 14:41:51,344 INFO L112 eAbstractionObserver]: Analyzing ICFG Mono4_1.c [2022-10-16 14:41:51,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:41:51,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 14:41:51,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:41:51,445 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;@60b225d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:41:51,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 14:41:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.625) internal successors, (26), 22 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 14:41:51,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:41:51,458 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:51,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:41:51,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:51,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:51,467 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2022-10-16 14:41:51,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:51,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203361865] [2022-10-16 14:41:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:51,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:51,736 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 14:41:51,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:51,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203361865] [2022-10-16 14:41:51,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203361865] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:41:51,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:41:51,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:41:51,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248439936] [2022-10-16 14:41:51,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:41:51,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:41:51,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:51,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:41:51,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:41:51,803 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.625) internal successors, (26), 22 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:41:51,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:51,905 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2022-10-16 14:41:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:41:51,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:41:51,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:51,934 INFO L225 Difference]: With dead ends: 48 [2022-10-16 14:41:51,934 INFO L226 Difference]: Without dead ends: 20 [2022-10-16 14:41:51,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:41:51,945 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:51,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 30 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:41:51,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-16 14:41:51,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-10-16 14:41:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 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 14:41:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-10-16 14:41:51,993 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5 [2022-10-16 14:41:51,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:51,994 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-10-16 14:41:51,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:41:51,995 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-10-16 14:41:51,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:41:51,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:51,996 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:41:51,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:41:51,997 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:51,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash 582877668, now seen corresponding path program 1 times [2022-10-16 14:41:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:51,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955668482] [2022-10-16 14:41:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:52,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:41:52,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:52,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955668482] [2022-10-16 14:41:52,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955668482] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:41:52,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:41:52,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:41:52,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872150411] [2022-10-16 14:41:52,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:41:52,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:41:52,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:41:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:41:52,058 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 14:41:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:52,096 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-10-16 14:41:52,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:41:52,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 14:41:52,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:52,100 INFO L225 Difference]: With dead ends: 20 [2022-10-16 14:41:52,100 INFO L226 Difference]: Without dead ends: 18 [2022-10-16 14:41:52,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:41:52,104 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:52,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:41:52,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-16 14:41:52,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-10-16 14:41:52,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 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 14:41:52,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-10-16 14:41:52,121 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2022-10-16 14:41:52,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:52,124 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-10-16 14:41:52,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 14:41:52,125 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-10-16 14:41:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:41:52,126 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:52,126 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:41:52,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:41:52,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:52,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash 889338578, now seen corresponding path program 1 times [2022-10-16 14:41:52,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:52,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231845764] [2022-10-16 14:41:52,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:52,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:41:52,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:52,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231845764] [2022-10-16 14:41:52,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231845764] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:52,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819317994] [2022-10-16 14:41:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:52,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:52,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:52,243 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 14:41:52,254 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 14:41:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:52,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:41:52,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:52,313 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 14:41:52,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:41:52,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819317994] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:41:52,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:41:52,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 14:41:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228559636] [2022-10-16 14:41:52,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:41:52,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:41:52,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:52,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:41:52,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:41:52,318 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 14:41:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:52,336 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-10-16 14:41:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:41:52,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 10 [2022-10-16 14:41:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:52,338 INFO L225 Difference]: With dead ends: 31 [2022-10-16 14:41:52,338 INFO L226 Difference]: Without dead ends: 19 [2022-10-16 14:41:52,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:41:52,340 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:52,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:41:52,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-16 14:41:52,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-10-16 14:41:52,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.25) internal successors, (20), 18 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 14:41:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-10-16 14:41:52,346 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 10 [2022-10-16 14:41:52,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:52,347 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-10-16 14:41:52,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 14:41:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-10-16 14:41:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:41:52,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:52,348 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:41:52,388 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 14:41:52,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:52,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:52,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:52,565 INFO L85 PathProgramCache]: Analyzing trace with hash 889332620, now seen corresponding path program 1 times [2022-10-16 14:41:52,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:52,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115900308] [2022-10-16 14:41:52,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:52,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:52,670 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 14:41:52,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:52,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115900308] [2022-10-16 14:41:52,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115900308] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:52,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594217199] [2022-10-16 14:41:52,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:52,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:52,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:52,673 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 14:41:52,685 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 14:41:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:52,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:41:52,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:52,833 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 14:41:52,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:41:52,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594217199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:41:52,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:41:52,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 14:41:52,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072733271] [2022-10-16 14:41:52,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:41:52,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:41:52,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:52,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:41:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:41:52,845 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:52,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:52,881 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-10-16 14:41:52,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:41:52,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:41:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:52,885 INFO L225 Difference]: With dead ends: 19 [2022-10-16 14:41:52,885 INFO L226 Difference]: Without dead ends: 18 [2022-10-16 14:41:52,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:41:52,892 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:52,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 7 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:41:52,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-16 14:41:52,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-10-16 14:41:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-10-16 14:41:52,901 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2022-10-16 14:41:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:52,901 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-10-16 14:41:52,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-10-16 14:41:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:41:52,905 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:52,906 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:41:52,954 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 14:41:53,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 14:41:53,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:53,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:53,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1799692198, now seen corresponding path program 1 times [2022-10-16 14:41:53,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:53,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020776836] [2022-10-16 14:41:53,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:53,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:53,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:41:53,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:53,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020776836] [2022-10-16 14:41:53,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020776836] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:53,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779160119] [2022-10-16 14:41:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:53,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:53,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:53,166 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 14:41:53,196 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 14:41:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:53,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:41:53,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:53,260 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 14:41:53,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:41:53,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779160119] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:41:53,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:41:53,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 14:41:53,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864248265] [2022-10-16 14:41:53,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:41:53,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:41:53,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:53,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:41:53,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:41:53,264 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:53,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:53,276 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-10-16 14:41:53,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:41:53,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:41:53,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:53,277 INFO L225 Difference]: With dead ends: 21 [2022-10-16 14:41:53,278 INFO L226 Difference]: Without dead ends: 20 [2022-10-16 14:41:53,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:41:53,280 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:53,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:41:53,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-16 14:41:53,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2022-10-16 14:41:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 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 14:41:53,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-10-16 14:41:53,286 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2022-10-16 14:41:53,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:53,287 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-10-16 14:41:53,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:53,288 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-10-16 14:41:53,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:41:53,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:53,288 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:41:53,323 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 14:41:53,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:53,503 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:53,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash -44116652, now seen corresponding path program 1 times [2022-10-16 14:41:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:53,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237371322] [2022-10-16 14:41:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:41:53,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:53,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237371322] [2022-10-16 14:41:53,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237371322] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:53,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806968840] [2022-10-16 14:41:53,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:53,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:53,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:53,606 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 14:41:53,609 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 14:41:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:53,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:41:53,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:53,669 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 14:41:53,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:41:53,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806968840] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:41:53,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:41:53,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 14:41:53,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003202991] [2022-10-16 14:41:53,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:41:53,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:41:53,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:53,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:41:53,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:41:53,672 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 14:41:53,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:53,680 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-10-16 14:41:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:41:53,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 14:41:53,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:53,681 INFO L225 Difference]: With dead ends: 19 [2022-10-16 14:41:53,681 INFO L226 Difference]: Without dead ends: 18 [2022-10-16 14:41:53,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:41:53,683 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:53,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:41:53,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-16 14:41:53,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-10-16 14:41:53,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 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 14:41:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-10-16 14:41:53,689 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2022-10-16 14:41:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:53,690 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-10-16 14:41:53,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 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 14:41:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-10-16 14:41:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:41:53,691 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:53,691 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:41:53,734 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 14:41:53,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:53,906 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:53,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:53,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1219582119, now seen corresponding path program 1 times [2022-10-16 14:41:53,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:53,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139072763] [2022-10-16 14:41:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:53,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:53,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:41:53,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:53,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139072763] [2022-10-16 14:41:53,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139072763] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:53,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384830306] [2022-10-16 14:41:53,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:53,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:53,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:53,969 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 14:41:53,975 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 14:41:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:54,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:41:54,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:41:54,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:41:54,078 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:41:54,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384830306] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:41:54,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:41:54,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 14:41:54,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388859792] [2022-10-16 14:41:54,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:41:54,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:41:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:54,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:41:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:41:54,082 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 14:41:54,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:54,122 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-10-16 14:41:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:41:54,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 14:41:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:54,124 INFO L225 Difference]: With dead ends: 40 [2022-10-16 14:41:54,124 INFO L226 Difference]: Without dead ends: 30 [2022-10-16 14:41:54,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:41:54,126 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:54,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:41:54,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-16 14:41:54,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-10-16 14:41:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-10-16 14:41:54,134 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 17 [2022-10-16 14:41:54,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:54,134 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-10-16 14:41:54,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 14:41:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-10-16 14:41:54,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:41:54,136 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:54,136 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:41:54,175 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 14:41:54,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:54,350 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:54,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:54,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1191894134, now seen corresponding path program 2 times [2022-10-16 14:41:54,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:54,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210320263] [2022-10-16 14:41:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 14:41:54,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:54,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210320263] [2022-10-16 14:41:54,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210320263] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:54,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363641552] [2022-10-16 14:41:54,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:41:54,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:54,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:54,514 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 14:41:54,518 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 14:41:54,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:41:54,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:41:54,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:41:54,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:41:54,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:41:54,746 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:41:54,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363641552] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:41:54,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:41:54,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-16 14:41:54,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639536535] [2022-10-16 14:41:54,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:41:54,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:41:54,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:41:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:41:54,750 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:54,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:54,940 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2022-10-16 14:41:54,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:41:54,941 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 14:41:54,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:54,942 INFO L225 Difference]: With dead ends: 71 [2022-10-16 14:41:54,942 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:41:54,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:41:54,944 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 43 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:54,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 21 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:41:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:41:54,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-10-16 14:41:54,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 59 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:54,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2022-10-16 14:41:54,957 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 29 [2022-10-16 14:41:54,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:54,957 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2022-10-16 14:41:54,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:54,958 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2022-10-16 14:41:54,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 14:41:54,960 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:54,960 INFO L195 NwaCegarLoop]: trace histogram [13, 10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1] [2022-10-16 14:41:54,995 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 14:41:55,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:55,175 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:55,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:55,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1232260449, now seen corresponding path program 3 times [2022-10-16 14:41:55,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:55,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306609237] [2022-10-16 14:41:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:55,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-16 14:41:55,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:55,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306609237] [2022-10-16 14:41:55,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306609237] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:55,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684271825] [2022-10-16 14:41:55,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:41:55,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:55,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:55,377 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 14:41:55,393 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 14:41:55,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 14:41:55,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:41:55,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:41:55,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:55,504 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-16 14:41:55,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:41:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-16 14:41:55,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684271825] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:41:55,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:41:55,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 14:41:55,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400697853] [2022-10-16 14:41:55,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:41:55,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:41:55,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:55,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:41:55,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:41:55,605 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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 14:41:55,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:55,632 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2022-10-16 14:41:55,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:41:55,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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 59 [2022-10-16 14:41:55,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:55,635 INFO L225 Difference]: With dead ends: 85 [2022-10-16 14:41:55,635 INFO L226 Difference]: Without dead ends: 84 [2022-10-16 14:41:55,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:41:55,636 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:55,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 36 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:41:55,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-16 14:41:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-10-16 14:41:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.0240963855421688) internal successors, (85), 83 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2022-10-16 14:41:55,649 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 59 [2022-10-16 14:41:55,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:55,649 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2022-10-16 14:41:55,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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 14:41:55,650 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2022-10-16 14:41:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 14:41:55,652 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:55,652 INFO L195 NwaCegarLoop]: trace histogram [17, 10, 10, 10, 7, 7, 7, 6, 6, 1, 1, 1] [2022-10-16 14:41:55,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:41:55,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:55,868 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:55,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:55,869 INFO L85 PathProgramCache]: Analyzing trace with hash 848038123, now seen corresponding path program 4 times [2022-10-16 14:41:55,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:55,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549480553] [2022-10-16 14:41:55,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:55,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 14:41:56,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:56,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549480553] [2022-10-16 14:41:56,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549480553] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:56,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017038887] [2022-10-16 14:41:56,242 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:41:56,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:56,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:56,243 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 14:41:56,245 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 14:41:56,316 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:41:56,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:41:56,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:41:56,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 14:41:56,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:41:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 14:41:56,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017038887] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:41:56,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:41:56,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-16 14:41:56,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231916373] [2022-10-16 14:41:56,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:41:56,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:41:56,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:56,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:41:56,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:41:56,639 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 14:41:56,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:56,765 INFO L93 Difference]: Finished difference Result 172 states and 185 transitions. [2022-10-16 14:41:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 14:41:56,766 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-10-16 14:41:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:56,768 INFO L225 Difference]: With dead ends: 172 [2022-10-16 14:41:56,768 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 14:41:56,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:41:56,770 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:56,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 24 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:41:56,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 14:41:56,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-10-16 14:41:56,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.015267175572519) internal successors, (133), 131 states have internal predecessors, (133), 0 states have call successors, (0), 0 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 14:41:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 133 transitions. [2022-10-16 14:41:56,787 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 133 transitions. Word has length 83 [2022-10-16 14:41:56,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:56,788 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 133 transitions. [2022-10-16 14:41:56,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 14:41:56,789 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 133 transitions. [2022-10-16 14:41:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-16 14:41:56,791 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:56,791 INFO L195 NwaCegarLoop]: trace histogram [29, 22, 22, 22, 7, 7, 7, 6, 6, 1, 1, 1] [2022-10-16 14:41:56,831 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 14:41:57,007 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,SelfDestructingSolverStorable9 [2022-10-16 14:41:57,008 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:57,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:57,009 INFO L85 PathProgramCache]: Analyzing trace with hash -26644561, now seen corresponding path program 5 times [2022-10-16 14:41:57,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:57,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011402777] [2022-10-16 14:41:57,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:57,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 14:41:57,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:57,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011402777] [2022-10-16 14:41:57,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011402777] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:57,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437397292] [2022-10-16 14:41:57,847 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:41:57,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:57,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:57,849 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 14:41:57,873 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 14:41:57,936 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2022-10-16 14:41:57,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:41:57,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 14:41:57,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 14:41:58,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:41:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 14:41:58,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437397292] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:41:58,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:41:58,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-16 14:41:58,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267662353] [2022-10-16 14:41:58,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:41:58,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 14:41:58,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:58,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 14:41:58,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 14:41:58,902 INFO L87 Difference]: Start difference. First operand 132 states and 133 transitions. Second operand has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 0 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 14:41:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:59,146 INFO L93 Difference]: Finished difference Result 268 states and 293 transitions. [2022-10-16 14:41:59,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 14:41:59,146 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 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 131 [2022-10-16 14:41:59,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:59,149 INFO L225 Difference]: With dead ends: 268 [2022-10-16 14:41:59,149 INFO L226 Difference]: Without dead ends: 228 [2022-10-16 14:41:59,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 14:41:59,151 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 92 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:59,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 20 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:41:59,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-10-16 14:41:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-10-16 14:41:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.0088105726872247) internal successors, (229), 227 states have internal predecessors, (229), 0 states have call successors, (0), 0 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 14:41:59,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 229 transitions. [2022-10-16 14:41:59,175 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 229 transitions. Word has length 131 [2022-10-16 14:41:59,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:59,175 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 229 transitions. [2022-10-16 14:41:59,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 0 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 14:41:59,176 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 229 transitions. [2022-10-16 14:41:59,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-10-16 14:41:59,180 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:59,180 INFO L195 NwaCegarLoop]: trace histogram [53, 46, 46, 46, 7, 7, 7, 6, 6, 1, 1, 1] [2022-10-16 14:41:59,217 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 14:41:59,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:59,395 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:59,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1809184055, now seen corresponding path program 6 times [2022-10-16 14:41:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:59,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562630062] [2022-10-16 14:41:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:59,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 564 proven. 4232 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 14:42:01,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:01,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562630062] [2022-10-16 14:42:01,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562630062] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:01,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912694661] [2022-10-16 14:42:01,853 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:42:01,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:01,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:01,855 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 14:42:01,871 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 14:42:01,924 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-10-16 14:42:01,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:01,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:42:01,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:02,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2022-10-16 14:42:02,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2022-10-16 14:42:02,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912694661] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:02,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:02,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 8, 8] total 63 [2022-10-16 14:42:02,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905725224] [2022-10-16 14:42:02,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:02,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-10-16 14:42:02,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:02,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-10-16 14:42:02,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1295, Invalid=2611, Unknown=0, NotChecked=0, Total=3906 [2022-10-16 14:42:02,820 INFO L87 Difference]: Start difference. First operand 228 states and 229 transitions. Second operand has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 0 states have call successors, (0), 0 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 14:42:04,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:04,353 INFO L93 Difference]: Finished difference Result 322 states and 332 transitions. [2022-10-16 14:42:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 14:42:04,354 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 0 states have call successors, (0), 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 227 [2022-10-16 14:42:04,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:04,359 INFO L225 Difference]: With dead ends: 322 [2022-10-16 14:42:04,359 INFO L226 Difference]: Without dead ends: 282 [2022-10-16 14:42:04,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1725 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=4256, Invalid=7734, Unknown=0, NotChecked=0, Total=11990 [2022-10-16 14:42:04,366 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 406 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:04,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 77 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:42:04,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-10-16 14:42:04,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 280. [2022-10-16 14:42:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 1.007168458781362) internal successors, (281), 279 states have internal predecessors, (281), 0 states have call successors, (0), 0 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 14:42:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 281 transitions. [2022-10-16 14:42:04,399 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 281 transitions. Word has length 227 [2022-10-16 14:42:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:04,400 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 281 transitions. [2022-10-16 14:42:04,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 0 states have call successors, (0), 0 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 14:42:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 281 transitions. [2022-10-16 14:42:04,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-10-16 14:42:04,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:04,415 INFO L195 NwaCegarLoop]: trace histogram [62, 47, 47, 47, 15, 15, 15, 14, 14, 1, 1, 1] [2022-10-16 14:42:04,451 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 14:42:04,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 14:42:04,628 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:42:04,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:04,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1880735926, now seen corresponding path program 7 times [2022-10-16 14:42:04,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:04,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447754963] [2022-10-16 14:42:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:04,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-16 14:42:07,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:07,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447754963] [2022-10-16 14:42:07,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447754963] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:07,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333186238] [2022-10-16 14:42:07,109 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:42:07,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:07,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:07,110 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 14:42:07,114 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 14:42:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:07,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 14:42:07,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-16 14:42:07,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-16 14:42:10,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333186238] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:10,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:10,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 99 [2022-10-16 14:42:10,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537343374] [2022-10-16 14:42:10,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:10,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-10-16 14:42:10,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-10-16 14:42:10,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2022-10-16 14:42:10,703 INFO L87 Difference]: Start difference. First operand 280 states and 281 transitions. Second operand has 99 states, 99 states have (on average 3.98989898989899) internal successors, (395), 99 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:11,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:11,253 INFO L93 Difference]: Finished difference Result 564 states and 614 transitions. [2022-10-16 14:42:11,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-10-16 14:42:11,254 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 3.98989898989899) internal successors, (395), 99 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279 [2022-10-16 14:42:11,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:11,257 INFO L225 Difference]: With dead ends: 564 [2022-10-16 14:42:11,257 INFO L226 Difference]: Without dead ends: 476 [2022-10-16 14:42:11,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2022-10-16 14:42:11,268 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 288 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:11,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 20 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:42:11,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-10-16 14:42:11,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2022-10-16 14:42:11,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 475 states have (on average 1.0042105263157894) internal successors, (477), 475 states have internal predecessors, (477), 0 states have call successors, (0), 0 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 14:42:11,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 477 transitions. [2022-10-16 14:42:11,291 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 477 transitions. Word has length 279 [2022-10-16 14:42:11,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:11,294 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 477 transitions. [2022-10-16 14:42:11,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 3.98989898989899) internal successors, (395), 99 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:11,295 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 477 transitions. [2022-10-16 14:42:11,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-10-16 14:42:11,304 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:11,304 INFO L195 NwaCegarLoop]: trace histogram [111, 96, 96, 96, 15, 15, 15, 14, 14, 1, 1, 1] [2022-10-16 14:42:11,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 14:42:11,518 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,SelfDestructingSolverStorable12 [2022-10-16 14:42:11,518 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:42:11,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:11,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2046088789, now seen corresponding path program 8 times [2022-10-16 14:42:11,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:11,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488358058] [2022-10-16 14:42:11,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:11,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 2716 proven. 18432 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-16 14:42:20,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:20,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488358058] [2022-10-16 14:42:20,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488358058] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:20,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999826612] [2022-10-16 14:42:20,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:42:20,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:20,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:20,236 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 14:42:20,237 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 14:42:20,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:42:20,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:20,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 98 conjunts are in the unsatisfiable core [2022-10-16 14:42:20,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 2716 proven. 18432 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-16 14:42:20,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 2716 proven. 18432 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-16 14:42:33,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999826612] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:33,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:33,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99, 99] total 197 [2022-10-16 14:42:33,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691225420] [2022-10-16 14:42:33,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:34,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2022-10-16 14:42:34,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:34,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2022-10-16 14:42:34,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2022-10-16 14:42:34,017 INFO L87 Difference]: Start difference. First operand 476 states and 477 transitions. Second operand has 197 states, 197 states have (on average 3.99492385786802) internal successors, (787), 197 states have internal predecessors, (787), 0 states have call successors, (0), 0 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 14:42:36,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:36,163 INFO L93 Difference]: Finished difference Result 956 states and 1055 transitions. [2022-10-16 14:42:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-10-16 14:42:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 197 states, 197 states have (on average 3.99492385786802) internal successors, (787), 197 states have internal predecessors, (787), 0 states have call successors, (0), 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 475 [2022-10-16 14:42:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:36,171 INFO L225 Difference]: With dead ends: 956 [2022-10-16 14:42:36,171 INFO L226 Difference]: Without dead ends: 868 [2022-10-16 14:42:36,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2022-10-16 14:42:36,176 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 388 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:36,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 32 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:42:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-10-16 14:42:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2022-10-16 14:42:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.0023068050749713) internal successors, (869), 867 states have internal predecessors, (869), 0 states have call successors, (0), 0 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 14:42:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 869 transitions. [2022-10-16 14:42:36,210 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 869 transitions. Word has length 475 [2022-10-16 14:42:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:36,211 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 869 transitions. [2022-10-16 14:42:36,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 197 states have (on average 3.99492385786802) internal successors, (787), 197 states have internal predecessors, (787), 0 states have call successors, (0), 0 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 14:42:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 869 transitions. [2022-10-16 14:42:36,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2022-10-16 14:42:36,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:36,245 INFO L195 NwaCegarLoop]: trace histogram [209, 194, 194, 194, 15, 15, 15, 14, 14, 1, 1, 1] [2022-10-16 14:42:36,290 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 14:42:36,460 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,SelfDestructingSolverStorable13 [2022-10-16 14:42:36,461 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:42:36,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:36,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1251652587, now seen corresponding path program 9 times [2022-10-16 14:42:36,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:36,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373087772] [2022-10-16 14:42:36,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:36,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 81320 backedges. 5460 proven. 75272 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-16 14:43:09,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:09,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373087772] [2022-10-16 14:43:09,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373087772] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:43:09,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532884874] [2022-10-16 14:43:09,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:43:09,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:09,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:43:09,497 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 14:43:09,516 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 14:43:09,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-10-16 14:43:09,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:43:09,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:43:09,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:43:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 81320 backedges. 0 proven. 6048 refuted. 0 times theorem prover too weak. 75272 trivial. 0 not checked. [2022-10-16 14:43:12,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:43:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 81320 backedges. 0 proven. 6048 refuted. 0 times theorem prover too weak. 75272 trivial. 0 not checked. [2022-10-16 14:43:14,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532884874] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:43:14,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:43:14,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [197, 16, 16] total 227 [2022-10-16 14:43:14,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994049427] [2022-10-16 14:43:14,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:43:14,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 227 states [2022-10-16 14:43:14,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:43:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 227 interpolants. [2022-10-16 14:43:14,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19801, Invalid=31501, Unknown=0, NotChecked=0, Total=51302 [2022-10-16 14:43:14,860 INFO L87 Difference]: Start difference. First operand 868 states and 869 transitions. Second operand has 227 states, 227 states have (on average 4.286343612334802) internal successors, (973), 227 states have internal predecessors, (973), 0 states have call successors, (0), 0 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 14:43:37,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:37,455 INFO L93 Difference]: Finished difference Result 1058 states and 1076 transitions. [2022-10-16 14:43:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-10-16 14:43:37,456 INFO L78 Accepts]: Start accepts. Automaton has has 227 states, 227 states have (on average 4.286343612334802) internal successors, (973), 227 states have internal predecessors, (973), 0 states have call successors, (0), 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 867 [2022-10-16 14:43:37,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:37,463 INFO L225 Difference]: With dead ends: 1058 [2022-10-16 14:43:37,463 INFO L226 Difference]: Without dead ends: 970 [2022-10-16 14:43:37,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2124 GetRequests, 1704 SyntacticMatches, 0 SemanticMatches, 420 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24735 ImplicationChecksByTransitivity, 37.2s TimeCoverageRelationStatistics Valid=64066, Invalid=113596, Unknown=0, NotChecked=0, Total=177662 [2022-10-16 14:43:37,475 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1599 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:37,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 136 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:43:37,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-10-16 14:43:37,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 968. [2022-10-16 14:43:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 967 states have (on average 1.0020682523267839) internal successors, (969), 967 states have internal predecessors, (969), 0 states have call successors, (0), 0 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 14:43:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 969 transitions. [2022-10-16 14:43:37,510 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 969 transitions. Word has length 867 [2022-10-16 14:43:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:43:37,511 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 969 transitions. [2022-10-16 14:43:37,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 227 states, 227 states have (on average 4.286343612334802) internal successors, (973), 227 states have internal predecessors, (973), 0 states have call successors, (0), 0 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 14:43:37,513 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 969 transitions. [2022-10-16 14:43:37,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2022-10-16 14:43:37,549 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:43:37,550 INFO L195 NwaCegarLoop]: trace histogram [226, 195, 195, 195, 31, 31, 31, 30, 30, 1, 1, 1] [2022-10-16 14:43:37,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-16 14:43:37,763 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,SelfDestructingSolverStorable14 [2022-10-16 14:43:37,764 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:43:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:43:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1461025642, now seen corresponding path program 10 times [2022-10-16 14:43:37,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:43:37,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129406466] [2022-10-16 14:43:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:37,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:43:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:12,413 INFO L134 CoverageAnalysis]: Checked inductivity of 90510 backedges. 11760 proven. 76050 refuted. 0 times theorem prover too weak. 2700 trivial. 0 not checked. [2022-10-16 14:44:12,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:12,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129406466] [2022-10-16 14:44:12,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129406466] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:12,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136066221] [2022-10-16 14:44:12,413 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:44:12,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:12,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:12,415 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 14:44:12,417 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 14:44:12,646 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:44:12,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:44:12,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 197 conjunts are in the unsatisfiable core [2022-10-16 14:44:12,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:13,629 INFO L134 CoverageAnalysis]: Checked inductivity of 90510 backedges. 11760 proven. 76050 refuted. 0 times theorem prover too weak. 2700 trivial. 0 not checked. [2022-10-16 14:44:13,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:05,583 INFO L134 CoverageAnalysis]: Checked inductivity of 90510 backedges. 11760 proven. 76050 refuted. 0 times theorem prover too weak. 2700 trivial. 0 not checked. [2022-10-16 14:45:05,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136066221] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:05,583 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:05,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [198, 198, 198] total 395 [2022-10-16 14:45:05,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467748875] [2022-10-16 14:45:05,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:05,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 395 states [2022-10-16 14:45:05,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 395 interpolants. [2022-10-16 14:45:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77815, Invalid=77815, Unknown=0, NotChecked=0, Total=155630 [2022-10-16 14:45:05,615 INFO L87 Difference]: Start difference. First operand 968 states and 969 transitions. Second operand has 395 states, 395 states have (on average 3.9974683544303797) internal successors, (1579), 395 states have internal predecessors, (1579), 0 states have call successors, (0), 0 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 14:45:13,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:13,696 INFO L93 Difference]: Finished difference Result 1940 states and 2138 transitions. [2022-10-16 14:45:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 394 states. [2022-10-16 14:45:13,703 INFO L78 Accepts]: Start accepts. Automaton has has 395 states, 395 states have (on average 3.9974683544303797) internal successors, (1579), 395 states have internal predecessors, (1579), 0 states have call successors, (0), 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 967 [2022-10-16 14:45:13,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:13,713 INFO L225 Difference]: With dead ends: 1940 [2022-10-16 14:45:13,713 INFO L226 Difference]: Without dead ends: 1756 [2022-10-16 14:45:13,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2130 GetRequests, 1737 SyntacticMatches, 0 SemanticMatches, 393 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 66.7s TimeCoverageRelationStatistics Valid=77815, Invalid=77815, Unknown=0, NotChecked=0, Total=155630 [2022-10-16 14:45:13,724 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1176 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:13,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 44 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 14:45:13,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2022-10-16 14:45:13,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1756. [2022-10-16 14:45:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1755 states have (on average 1.0011396011396012) internal successors, (1757), 1755 states have internal predecessors, (1757), 0 states have call successors, (0), 0 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 14:45:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 1757 transitions. [2022-10-16 14:45:13,779 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 1757 transitions. Word has length 967 [2022-10-16 14:45:13,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:13,780 INFO L495 AbstractCegarLoop]: Abstraction has 1756 states and 1757 transitions. [2022-10-16 14:45:13,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 395 states, 395 states have (on average 3.9974683544303797) internal successors, (1579), 395 states have internal predecessors, (1579), 0 states have call successors, (0), 0 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 14:45:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 1757 transitions. [2022-10-16 14:45:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1756 [2022-10-16 14:45:13,805 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:13,805 INFO L195 NwaCegarLoop]: trace histogram [423, 392, 392, 392, 31, 31, 31, 30, 30, 1, 1, 1] [2022-10-16 14:45:13,829 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 14:45:14,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:14,013 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:45:14,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:14,014 INFO L85 PathProgramCache]: Analyzing trace with hash 2003741629, now seen corresponding path program 11 times [2022-10-16 14:45:14,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:14,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251972315] [2022-10-16 14:45:14,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:14,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat