/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_two_index_01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:17:47,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:17:47,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:17:47,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:17:47,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:17:47,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:17:47,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:17:47,758 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 10:17:47,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:17:47,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:17:47,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:17:47,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:17:47,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:17:47,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:17:47,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:17:47,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:17:47,821 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:17:47,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:17:47,823 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:17:47,823 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:17:47,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:17:47,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:17:47,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:17:47,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:17:47,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:17:47,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:17:47,824 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:17:47,825 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:17:47,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:17:47,825 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:17:47,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:17:47,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:17:47,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:17:47,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:17:47,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:17:47,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:17:47,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:17:47,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:17:47,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:17:47,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:17:47,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:17:47,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:17:48,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:17:48,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:17:48,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:17:48,323 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:17:48,324 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:17:48,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_two_index_01.i [2022-10-16 10:17:48,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98191f5d/bd110d9e56dc43bb868c63aeada8ba07/FLAG19ce0305b [2022-10-16 10:17:49,038 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:17:49,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_01.i [2022-10-16 10:17:49,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98191f5d/bd110d9e56dc43bb868c63aeada8ba07/FLAG19ce0305b [2022-10-16 10:17:49,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98191f5d/bd110d9e56dc43bb868c63aeada8ba07 [2022-10-16 10:17:49,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:17:49,409 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:17:49,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:17:49,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:17:49,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:17:49,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f795a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49, skipping insertion in model container [2022-10-16 10:17:49,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:17:49,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:17:49,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_01.i[814,827] [2022-10-16 10:17:49,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:17:49,649 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:17:49,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_01.i[814,827] [2022-10-16 10:17:49,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:17:49,688 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:17:49,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49 WrapperNode [2022-10-16 10:17:49,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:17:49,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:17:49,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:17:49,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:17:49,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,731 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2022-10-16 10:17:49,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:17:49,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:17:49,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:17:49,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:17:49,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:17:49,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:17:49,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:17:49,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:17:49,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (1/1) ... [2022-10-16 10:17:49,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:17:49,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:49,805 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 10:17:49,823 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 10:17:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:17:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:17:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:17:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:17:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:17:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:17:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:17:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:17:49,962 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:17:49,964 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:17:50,262 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:17:50,270 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:17:50,271 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:17:50,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:17:50 BoogieIcfgContainer [2022-10-16 10:17:50,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:17:50,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:17:50,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:17:50,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:17:50,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:17:49" (1/3) ... [2022-10-16 10:17:50,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b089641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:17:50, skipping insertion in model container [2022-10-16 10:17:50,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:17:49" (2/3) ... [2022-10-16 10:17:50,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b089641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:17:50, skipping insertion in model container [2022-10-16 10:17:50,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:17:50" (3/3) ... [2022-10-16 10:17:50,284 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_two_index_01.i [2022-10-16 10:17:50,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:17:50,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 10:17:50,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:17:50,485 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;@3656b34b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:17:50,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 10:17:50,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 33 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 10:17:50,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:50,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 10:17:50,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:50,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:50,548 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-16 10:17:50,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:50,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632764872] [2022-10-16 10:17:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:50,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:50,812 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 10:17:50,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:50,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632764872] [2022-10-16 10:17:50,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632764872] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:17:50,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:17:50,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:17:50,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852074717] [2022-10-16 10:17:50,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:17:50,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:17:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:50,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:17:50,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:17:50,860 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 33 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 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 10:17:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:50,958 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2022-10-16 10:17:50,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:17:50,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-10-16 10:17:50,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:50,981 INFO L225 Difference]: With dead ends: 75 [2022-10-16 10:17:50,981 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 10:17:50,985 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 10:17:50,990 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:50,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 42 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:17:51,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 10:17:51,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-16 10:17:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.4) internal successors, (42), 39 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:51,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2022-10-16 10:17:51,035 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 4 [2022-10-16 10:17:51,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:51,035 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2022-10-16 10:17:51,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 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 10:17:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2022-10-16 10:17:51,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:17:51,036 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:51,037 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-16 10:17:51,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:17:51,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:51,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:51,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-16 10:17:51,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:51,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588152636] [2022-10-16 10:17:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:51,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:51,149 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 10:17:51,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:51,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588152636] [2022-10-16 10:17:51,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588152636] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:17:51,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:17:51,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:17:51,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660598239] [2022-10-16 10:17:51,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:17:51,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:17:51,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:51,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:17:51,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:17:51,158 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 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 10:17:51,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:51,252 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2022-10-16 10:17:51,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:17:51,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-10-16 10:17:51,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:51,255 INFO L225 Difference]: With dead ends: 40 [2022-10-16 10:17:51,255 INFO L226 Difference]: Without dead ends: 37 [2022-10-16 10:17:51,257 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 10:17:51,260 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:51,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:17:51,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-16 10:17:51,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-10-16 10:17:51,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 30 states have (on average 1.3) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-10-16 10:17:51,281 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 7 [2022-10-16 10:17:51,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:51,283 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-10-16 10:17:51,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 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 10:17:51,283 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-10-16 10:17:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:17:51,284 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:51,285 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-16 10:17:51,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:17:51,286 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:51,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:51,289 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-16 10:17:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:51,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781377921] [2022-10-16 10:17:51,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:51,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:17:51,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:51,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781377921] [2022-10-16 10:17:51,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781377921] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:51,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900658004] [2022-10-16 10:17:51,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:51,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:51,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:51,428 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 10:17:51,430 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 10:17:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:51,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:17:51,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:17:51,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:17:51,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900658004] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:17:51,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:17:51,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:17:51,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102912990] [2022-10-16 10:17:51,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:17:51,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:17:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:51,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:17:51,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:17:51,597 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:51,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:51,673 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-10-16 10:17:51,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:17:51,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:17:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:51,675 INFO L225 Difference]: With dead ends: 37 [2022-10-16 10:17:51,675 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 10:17:51,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 10:17:51,678 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:51,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 20 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:17:51,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 10:17:51,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2022-10-16 10:17:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 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 10:17:51,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-10-16 10:17:51,686 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 8 [2022-10-16 10:17:51,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:51,686 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-10-16 10:17:51,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:51,687 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-10-16 10:17:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:17:51,687 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:51,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:51,733 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 10:17:51,903 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 10:17:51,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1080649737, now seen corresponding path program 1 times [2022-10-16 10:17:51,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:51,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751681869] [2022-10-16 10:17:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:51,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:17:51,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:51,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751681869] [2022-10-16 10:17:51,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751681869] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:51,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510683862] [2022-10-16 10:17:51,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:51,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:51,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:51,982 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 10:17:52,001 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 10:17:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:52,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:17:52,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:17:52,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:17:52,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510683862] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:17:52,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:17:52,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:17:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934334461] [2022-10-16 10:17:52,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:17:52,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:17:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:52,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:17:52,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:17:52,070 INFO L87 Difference]: Start difference. First operand 25 states and 27 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 10:17:52,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:52,115 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-10-16 10:17:52,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:17:52,115 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 11 [2022-10-16 10:17:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:52,119 INFO L225 Difference]: With dead ends: 38 [2022-10-16 10:17:52,119 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 10:17:52,120 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 10:17:52,124 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:52,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:17:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 10:17:52,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2022-10-16 10:17:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.2) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 10:17:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-10-16 10:17:52,147 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2022-10-16 10:17:52,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:52,148 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-10-16 10:17:52,148 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 10:17:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-10-16 10:17:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:17:52,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:52,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:52,189 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 10:17:52,364 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 10:17:52,365 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:52,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash 859596587, now seen corresponding path program 1 times [2022-10-16 10:17:52,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:52,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683314099] [2022-10-16 10:17:52,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:52,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:52,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:17:52,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:52,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683314099] [2022-10-16 10:17:52,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683314099] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:52,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688236967] [2022-10-16 10:17:52,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:52,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:52,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:52,442 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 10:17:52,471 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 10:17:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:52,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:17:52,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:17:52,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:17:52,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688236967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:17:52,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:17:52,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:17:52,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490822038] [2022-10-16 10:17:52,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:17:52,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:17:52,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:52,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:17:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:17:52,544 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:52,567 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-10-16 10:17:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:17:52,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 10:17:52,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:52,568 INFO L225 Difference]: With dead ends: 34 [2022-10-16 10:17:52,568 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 10:17:52,569 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 10:17:52,570 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:52,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 16 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:17:52,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 10:17:52,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-16 10:17:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:52,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-10-16 10:17:52,577 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 12 [2022-10-16 10:17:52,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:52,578 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-10-16 10:17:52,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 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 10:17:52,578 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-10-16 10:17:52,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:17:52,579 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:52,579 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:52,617 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 10:17:52,793 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 10:17:52,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:52,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:52,795 INFO L85 PathProgramCache]: Analyzing trace with hash -483778513, now seen corresponding path program 1 times [2022-10-16 10:17:52,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:52,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790958804] [2022-10-16 10:17:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:52,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:52,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:17:52,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:52,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790958804] [2022-10-16 10:17:52,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790958804] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:52,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448999577] [2022-10-16 10:17:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:52,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:52,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:52,878 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 10:17:52,907 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 10:17:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:52,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:17:52,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:17:52,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:17:53,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448999577] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:53,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:53,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 10:17:53,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820829028] [2022-10-16 10:17:53,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:53,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:17:53,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:17:53,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:17:53,023 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 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 10:17:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:53,130 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2022-10-16 10:17:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:17:53,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 10:17:53,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:53,132 INFO L225 Difference]: With dead ends: 99 [2022-10-16 10:17:53,132 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 10:17:53,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 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 10:17:53,133 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 62 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:53,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 53 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:17:53,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 10:17:53,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2022-10-16 10:17:53,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:53,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-10-16 10:17:53,143 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 16 [2022-10-16 10:17:53,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:53,144 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-10-16 10:17:53,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 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 10:17:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-10-16 10:17:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:17:53,145 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:53,145 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:53,184 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 10:17:53,359 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 10:17:53,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:53,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1270889002, now seen corresponding path program 2 times [2022-10-16 10:17:53,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:53,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374466616] [2022-10-16 10:17:53,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:53,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:53,472 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 10:17:53,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:53,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374466616] [2022-10-16 10:17:53,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374466616] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:53,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083943895] [2022-10-16 10:17:53,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:17:53,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:53,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:53,477 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 10:17:53,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:17:53,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:17:53,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:53,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:17:53,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:17:53,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:17:53,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083943895] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:53,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:53,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-16 10:17:53,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085305831] [2022-10-16 10:17:53,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:53,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:17:53,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:53,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:17:53,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:17:53,746 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:54,073 INFO L93 Difference]: Finished difference Result 211 states and 230 transitions. [2022-10-16 10:17:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 10:17:54,074 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:17:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:54,076 INFO L225 Difference]: With dead ends: 211 [2022-10-16 10:17:54,076 INFO L226 Difference]: Without dead ends: 173 [2022-10-16 10:17:54,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2022-10-16 10:17:54,078 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 249 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:54,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 90 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:17:54,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-10-16 10:17:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 108. [2022-10-16 10:17:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.1037735849056605) internal successors, (117), 107 states have internal predecessors, (117), 0 states have call successors, (0), 0 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 10:17:54,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2022-10-16 10:17:54,094 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 25 [2022-10-16 10:17:54,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:54,094 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2022-10-16 10:17:54,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:54,095 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2022-10-16 10:17:54,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:17:54,096 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:54,097 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:17:54,139 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 10:17:54,310 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 10:17:54,311 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:54,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:54,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1240077936, now seen corresponding path program 3 times [2022-10-16 10:17:54,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:54,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255829410] [2022-10-16 10:17:54,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:54,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:54,694 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 10:17:54,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:54,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255829410] [2022-10-16 10:17:54,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255829410] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:54,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658397494] [2022-10-16 10:17:54,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:17:54,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:54,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:54,697 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 10:17:54,707 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 10:17:54,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:17:54,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:54,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:17:54,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-10-16 10:17:54,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-10-16 10:17:54,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658397494] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:54,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:54,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2022-10-16 10:17:54,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819186186] [2022-10-16 10:17:54,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:54,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:17:54,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:55,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:17:55,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:17:55,004 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:55,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:55,655 INFO L93 Difference]: Finished difference Result 265 states and 285 transitions. [2022-10-16 10:17:55,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-16 10:17:55,655 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 10:17:55,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:55,657 INFO L225 Difference]: With dead ends: 265 [2022-10-16 10:17:55,657 INFO L226 Difference]: Without dead ends: 190 [2022-10-16 10:17:55,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=635, Invalid=1257, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 10:17:55,660 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 421 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:55,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 70 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:17:55,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-10-16 10:17:55,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 144. [2022-10-16 10:17:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 142 states have (on average 1.056338028169014) internal successors, (150), 143 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:55,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 150 transitions. [2022-10-16 10:17:55,680 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 150 transitions. Word has length 48 [2022-10-16 10:17:55,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:55,680 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 150 transitions. [2022-10-16 10:17:55,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:17:55,681 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 150 transitions. [2022-10-16 10:17:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 10:17:55,683 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:55,683 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:17:55,716 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 10:17:55,896 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 10:17:55,897 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:55,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:55,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1920685015, now seen corresponding path program 4 times [2022-10-16 10:17:55,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:55,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838548120] [2022-10-16 10:17:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:55,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:17:56,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:56,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838548120] [2022-10-16 10:17:56,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838548120] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:56,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340094636] [2022-10-16 10:17:56,318 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:17:56,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:56,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:56,319 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 10:17:56,320 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 10:17:56,412 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:17:56,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:56,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 10:17:56,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:17:56,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:17:56,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340094636] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:56,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:56,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-10-16 10:17:56,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920050501] [2022-10-16 10:17:56,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:56,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:17:56,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:56,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:17:56,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:17:56,838 INFO L87 Difference]: Start difference. First operand 144 states and 150 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 10:17:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:57,350 INFO L93 Difference]: Finished difference Result 511 states and 544 transitions. [2022-10-16 10:17:57,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:17:57,351 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-16 10:17:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:57,353 INFO L225 Difference]: With dead ends: 511 [2022-10-16 10:17:57,354 INFO L226 Difference]: Without dead ends: 403 [2022-10-16 10:17:57,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:17:57,356 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 736 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:57,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 207 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:17:57,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-10-16 10:17:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 248. [2022-10-16 10:17:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 246 states have (on average 1.0853658536585367) internal successors, (267), 247 states have internal predecessors, (267), 0 states have call successors, (0), 0 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 10:17:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 267 transitions. [2022-10-16 10:17:57,380 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 267 transitions. Word has length 71 [2022-10-16 10:17:57,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:57,380 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 267 transitions. [2022-10-16 10:17:57,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 10:17:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 267 transitions. [2022-10-16 10:17:57,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 10:17:57,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:57,383 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:17:57,429 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 10:17:57,598 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 10:17:57,598 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:17:57,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:57,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1281609584, now seen corresponding path program 5 times [2022-10-16 10:17:57,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:57,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478059727] [2022-10-16 10:17:57,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:57,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:17:58,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:58,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478059727] [2022-10-16 10:17:58,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478059727] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:58,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417812380] [2022-10-16 10:17:58,604 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:17:58,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:58,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:58,606 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 10:17:58,611 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 10:18:03,957 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-10-16 10:18:03,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:03,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:18:03,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:18:04,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:18:05,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417812380] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:05,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:05,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-10-16 10:18:05,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600469297] [2022-10-16 10:18:05,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:05,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 10:18:05,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:05,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 10:18:05,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:18:05,242 INFO L87 Difference]: Start difference. First operand 248 states and 267 transitions. Second operand has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:06,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:06,833 INFO L93 Difference]: Finished difference Result 1018 states and 1090 transitions. [2022-10-16 10:18:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 10:18:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-10-16 10:18:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:06,839 INFO L225 Difference]: With dead ends: 1018 [2022-10-16 10:18:06,840 INFO L226 Difference]: Without dead ends: 845 [2022-10-16 10:18:06,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:18:06,843 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2530 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:06,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 403 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 10:18:06,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2022-10-16 10:18:06,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 456. [2022-10-16 10:18:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 454 states have (on average 1.10352422907489) internal successors, (501), 455 states have internal predecessors, (501), 0 states have call successors, (0), 0 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 10:18:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 501 transitions. [2022-10-16 10:18:06,878 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 501 transitions. Word has length 110 [2022-10-16 10:18:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:06,879 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 501 transitions. [2022-10-16 10:18:06,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:06,880 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 501 transitions. [2022-10-16 10:18:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 10:18:06,883 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:06,883 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:18:06,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 10:18:07,096 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 10:18:07,096 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:18:07,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:07,097 INFO L85 PathProgramCache]: Analyzing trace with hash 556293520, now seen corresponding path program 6 times [2022-10-16 10:18:07,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:07,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991345178] [2022-10-16 10:18:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:18:10,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:10,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991345178] [2022-10-16 10:18:10,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991345178] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:10,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555429584] [2022-10-16 10:18:10,391 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:18:10,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:10,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:10,393 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 10:18:10,398 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 10:18:11,329 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2022-10-16 10:18:11,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:11,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:18:11,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 3725 trivial. 0 not checked. [2022-10-16 10:18:11,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:12,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 3725 trivial. 0 not checked. [2022-10-16 10:18:12,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555429584] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:12,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:12,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 8, 8] total 67 [2022-10-16 10:18:12,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577560577] [2022-10-16 10:18:12,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:12,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:18:12,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:12,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:18:12,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:18:12,221 INFO L87 Difference]: Start difference. First operand 456 states and 501 transitions. Second operand has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 0 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 10:18:18,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:18,230 INFO L93 Difference]: Finished difference Result 1157 states and 1221 transitions. [2022-10-16 10:18:18,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-10-16 10:18:18,231 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 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 188 [2022-10-16 10:18:18,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:18,236 INFO L225 Difference]: With dead ends: 1157 [2022-10-16 10:18:18,236 INFO L226 Difference]: Without dead ends: 854 [2022-10-16 10:18:18,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7238 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=10371, Invalid=21849, Unknown=0, NotChecked=0, Total=32220 [2022-10-16 10:18:18,251 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2449 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 1103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1103 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:18,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 302 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1103 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 10:18:18,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-10-16 10:18:18,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 520. [2022-10-16 10:18:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 518 states have (on average 1.0772200772200773) internal successors, (558), 519 states have internal predecessors, (558), 0 states have call successors, (0), 0 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 10:18:18,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 558 transitions. [2022-10-16 10:18:18,294 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 558 transitions. Word has length 188 [2022-10-16 10:18:18,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:18,295 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 558 transitions. [2022-10-16 10:18:18,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 0 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 10:18:18,295 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 558 transitions. [2022-10-16 10:18:18,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-10-16 10:18:18,298 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:18,299 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:18:18,340 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 10:18:18,513 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 10:18:18,514 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:18:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1404568745, now seen corresponding path program 7 times [2022-10-16 10:18:18,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:18,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953516817] [2022-10-16 10:18:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:18,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:21,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:18:21,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:21,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953516817] [2022-10-16 10:18:21,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953516817] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:21,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104418209] [2022-10-16 10:18:21,717 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:18:21,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:21,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:21,719 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 10:18:21,720 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 10:18:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:21,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:18:21,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:22,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:18:22,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:18:25,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104418209] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:25,943 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:25,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2022-10-16 10:18:25,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794673679] [2022-10-16 10:18:25,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:25,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-10-16 10:18:25,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:25,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-10-16 10:18:25,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:18:25,960 INFO L87 Difference]: Start difference. First operand 520 states and 558 transitions. Second operand has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 0 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 10:18:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:34,095 INFO L93 Difference]: Finished difference Result 2111 states and 2256 transitions. [2022-10-16 10:18:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-16 10:18:34,096 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 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 231 [2022-10-16 10:18:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:34,105 INFO L225 Difference]: With dead ends: 2111 [2022-10-16 10:18:34,105 INFO L226 Difference]: Without dead ends: 1747 [2022-10-16 10:18:34,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:18:34,109 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5048 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5048 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:34,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5048 Valid, 840 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [943 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 10:18:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2022-10-16 10:18:34,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 944. [2022-10-16 10:18:34,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 942 states have (on average 1.0987261146496816) internal successors, (1035), 943 states have internal predecessors, (1035), 0 states have call successors, (0), 0 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 10:18:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1035 transitions. [2022-10-16 10:18:34,176 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1035 transitions. Word has length 231 [2022-10-16 10:18:34,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:34,176 INFO L495 AbstractCegarLoop]: Abstraction has 944 states and 1035 transitions. [2022-10-16 10:18:34,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 0 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 10:18:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1035 transitions. [2022-10-16 10:18:34,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-10-16 10:18:34,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:34,184 INFO L195 NwaCegarLoop]: trace histogram [104, 104, 104, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:18:34,221 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 10:18:34,398 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 10:18:34,399 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:18:34,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash -416360592, now seen corresponding path program 8 times [2022-10-16 10:18:34,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:34,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38621603] [2022-10-16 10:18:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:34,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:18:45,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:45,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38621603] [2022-10-16 10:18:45,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38621603] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:45,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089589539] [2022-10-16 10:18:45,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:18:45,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:45,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:45,368 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 10:18:45,368 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 10:18:45,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:18:45,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:45,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 106 conjunts are in the unsatisfiable core [2022-10-16 10:18:45,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:46,129 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:18:46,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:19:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:19:00,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089589539] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:19:00,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:19:00,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 213 [2022-10-16 10:19:00,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695035404] [2022-10-16 10:19:00,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:19:00,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-10-16 10:19:00,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:19:00,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-10-16 10:19:00,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:19:00,944 INFO L87 Difference]: Start difference. First operand 944 states and 1035 transitions. Second operand has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 0 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 10:20:21,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:20:21,717 INFO L93 Difference]: Finished difference Result 4178 states and 4482 transitions. [2022-10-16 10:20:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-10-16 10:20:21,718 INFO L78 Accepts]: Start accepts. Automaton has has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 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 390 [2022-10-16 10:20:21,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:20:21,734 INFO L225 Difference]: With dead ends: 4178 [2022-10-16 10:20:21,734 INFO L226 Difference]: Without dead ends: 3549 [2022-10-16 10:20:21,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:20:21,741 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14838 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 2672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14838 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 4573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2672 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:20:21,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14838 Valid, 1670 Invalid, 4573 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2672 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-10-16 10:20:21,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2022-10-16 10:20:21,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 1792. [2022-10-16 10:20:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1790 states have (on average 1.1111731843575419) internal successors, (1989), 1791 states have internal predecessors, (1989), 0 states have call successors, (0), 0 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 10:20:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 1989 transitions. [2022-10-16 10:20:21,844 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 1989 transitions. Word has length 390 [2022-10-16 10:20:21,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:20:21,844 INFO L495 AbstractCegarLoop]: Abstraction has 1792 states and 1989 transitions. [2022-10-16 10:20:21,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 0 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 10:20:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 1989 transitions. [2022-10-16 10:20:21,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2022-10-16 10:20:21,863 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:20:21,863 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:20:21,899 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 10:20:22,079 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 10:20:22,080 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 10:20:22,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:20:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash 950267536, now seen corresponding path program 9 times [2022-10-16 10:20:22,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:20:22,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42969557] [2022-10-16 10:20:22,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:20:22,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:20:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 66045 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:00,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:00,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42969557] [2022-10-16 10:21:00,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42969557] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:00,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532187413] [2022-10-16 10:21:00,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:21:00,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:00,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:00,415 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 10:21:00,417 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 10:21:09,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-10-16 10:21:09,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:09,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:21:09,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:11,617 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 66045 trivial. 0 not checked. [2022-10-16 10:21:11,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:14,290 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 66045 trivial. 0 not checked. [2022-10-16 10:21:14,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532187413] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:14,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:14,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 16, 16] total 243 [2022-10-16 10:21:14,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787318655] [2022-10-16 10:21:14,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:14,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 243 states [2022-10-16 10:21:14,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:14,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2022-10-16 10:21:14,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23073, Invalid=35733, Unknown=0, NotChecked=0, Total=58806 [2022-10-16 10:21:14,305 INFO L87 Difference]: Start difference. First operand 1792 states and 1989 transitions. Second operand has 243 states, 243 states have (on average 3.292181069958848) internal successors, (800), 243 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)