/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_02.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:18:15,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:18:15,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:18:15,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:18:15,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:18:15,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:18:15,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:18:15,652 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 10:18:15,714 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:18:15,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:18:15,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:18:15,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:18:15,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:18:15,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:18:15,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:18:15,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:18:15,721 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:18:15,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:18:15,721 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:18:15,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:18:15,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:18:15,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:18:15,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:18:15,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:18:15,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:18:15,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:18:15,724 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:18:15,724 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:18:15,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:18:15,725 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:18:15,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:18:15,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:18:15,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:18:15,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:18:15,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:18:15,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:18:15,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:18:15,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:18:15,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:18:15,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:18:15,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:18:15,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:18:16,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:18:16,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:18:16,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:18:16,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:18:16,164 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:18:16,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_two_index_02.i [2022-10-16 10:18:16,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ce1470d6/45a900c47f5143d0a9014d9e8877c5f5/FLAG35e78db01 [2022-10-16 10:18:16,910 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:18:16,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_02.i [2022-10-16 10:18:16,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ce1470d6/45a900c47f5143d0a9014d9e8877c5f5/FLAG35e78db01 [2022-10-16 10:18:16,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ce1470d6/45a900c47f5143d0a9014d9e8877c5f5 [2022-10-16 10:18:16,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:18:16,951 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:18:16,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:18:16,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:18:16,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:18:16,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:18:16" (1/1) ... [2022-10-16 10:18:16,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61db34ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:16, skipping insertion in model container [2022-10-16 10:18:16,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:18:16" (1/1) ... [2022-10-16 10:18:16,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:18:16,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:18:17,162 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_02.i[814,827] [2022-10-16 10:18:17,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:18:17,194 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:18:17,209 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_02.i[814,827] [2022-10-16 10:18:17,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:18:17,233 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:18:17,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17 WrapperNode [2022-10-16 10:18:17,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:18:17,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:18:17,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:18:17,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:18:17,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,279 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2022-10-16 10:18:17,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:18:17,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:18:17,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:18:17,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:18:17,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:18:17,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:18:17,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:18:17,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:18:17,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (1/1) ... [2022-10-16 10:18:17,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:18:17,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:17,353 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 10:18:17,368 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 10:18:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:18:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:18:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:18:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:18:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:18:17,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:18:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:18:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:18:17,496 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:18:17,499 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:18:17,836 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:18:17,853 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:18:17,853 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:18:17,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:18:17 BoogieIcfgContainer [2022-10-16 10:18:17,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:18:17,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:18:17,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:18:17,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:18:17,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:18:16" (1/3) ... [2022-10-16 10:18:17,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5116be61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:18:17, skipping insertion in model container [2022-10-16 10:18:17,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:18:17" (2/3) ... [2022-10-16 10:18:17,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5116be61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:18:17, skipping insertion in model container [2022-10-16 10:18:17,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:18:17" (3/3) ... [2022-10-16 10:18:17,890 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_two_index_02.i [2022-10-16 10:18:17,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:18:17,943 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 10:18:18,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:18:18,100 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;@4d66b3dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:18:18,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 10:18:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 10:18:18,127 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:18,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 10:18:18,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:18,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:18,135 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-16 10:18:18,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:18,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629605668] [2022-10-16 10:18:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:18,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:18,405 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 10:18:18,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:18,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629605668] [2022-10-16 10:18:18,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629605668] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:18:18,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:18:18,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:18:18,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774525164] [2022-10-16 10:18:18,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:18:18,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:18:18,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:18:18,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:18:18,457 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 10:18:18,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:18,528 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2022-10-16 10:18:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:18:18,534 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 10:18:18,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:18,547 INFO L225 Difference]: With dead ends: 82 [2022-10-16 10:18:18,547 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 10:18:18,555 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 10:18:18,561 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:18,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 64 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:18:18,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 10:18:18,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-16 10:18:18,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6153846153846154) 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 10:18:18,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2022-10-16 10:18:18,622 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 4 [2022-10-16 10:18:18,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:18,623 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2022-10-16 10:18:18,624 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 10:18:18,624 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2022-10-16 10:18:18,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:18:18,625 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:18,625 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-16 10:18:18,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:18:18,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:18,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:18,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-16 10:18:18,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:18,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587654042] [2022-10-16 10:18:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:18,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:18,761 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 10:18:18,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:18,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587654042] [2022-10-16 10:18:18,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587654042] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:18:18,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:18:18,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:18:18,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765599065] [2022-10-16 10:18:18,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:18:18,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:18:18,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:18,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:18:18,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:18:18,770 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 10:18:18,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:18,817 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2022-10-16 10:18:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:18:18,818 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 10:18:18,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:18,819 INFO L225 Difference]: With dead ends: 61 [2022-10-16 10:18:18,819 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 10:18:18,820 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 10:18:18,822 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:18,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 33 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:18:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 10:18:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-10-16 10:18:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 37 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 10:18:18,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-10-16 10:18:18,831 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 7 [2022-10-16 10:18:18,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:18,832 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-10-16 10:18:18,832 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 10:18:18,832 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-10-16 10:18:18,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:18:18,833 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:18,833 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-16 10:18:18,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:18:18,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:18,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-16 10:18:18,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:18,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698015782] [2022-10-16 10:18:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:18,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:18,922 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 10:18:18,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:18,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698015782] [2022-10-16 10:18:18,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698015782] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:18,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293436099] [2022-10-16 10:18:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:18,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:18,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:18,927 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 10:18:18,951 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 10:18:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:18,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:18:19,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:19,056 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 10:18:19,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:18:19,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293436099] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:18:19,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:18:19,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:18:19,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254730658] [2022-10-16 10:18:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:18:19,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:18:19,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:19,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:18:19,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:18:19,061 INFO L87 Difference]: Start difference. First operand 38 states and 40 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 10:18:19,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:19,102 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-10-16 10:18:19,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:18:19,103 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 10:18:19,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:19,104 INFO L225 Difference]: With dead ends: 38 [2022-10-16 10:18:19,104 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 10:18:19,105 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 10:18:19,107 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 24 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:19,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:18:19,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 10:18:19,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-10-16 10:18:19,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.4) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:19,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-10-16 10:18:19,118 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 8 [2022-10-16 10:18:19,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:19,119 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-10-16 10:18:19,119 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 10:18:19,119 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-10-16 10:18:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:18:19,121 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:19,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:18:19,160 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 10:18:19,322 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 10:18:19,323 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:19,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:19,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1080649737, now seen corresponding path program 1 times [2022-10-16 10:18:19,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:19,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62757570] [2022-10-16 10:18:19,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:19,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:19,472 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 10:18:19,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:19,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62757570] [2022-10-16 10:18:19,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62757570] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:19,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572977078] [2022-10-16 10:18:19,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:19,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:19,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:19,476 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 10:18:19,478 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 10:18:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:19,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:18:19,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:19,589 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 10:18:19,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:18:19,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572977078] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:18:19,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:18:19,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:18:19,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980792405] [2022-10-16 10:18:19,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:18:19,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:18:19,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:19,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:18:19,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:18:19,595 INFO L87 Difference]: Start difference. First operand 33 states and 35 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 10:18:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:19,710 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-10-16 10:18:19,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:18:19,711 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 10:18:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:19,712 INFO L225 Difference]: With dead ends: 52 [2022-10-16 10:18:19,713 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 10:18:19,713 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 10:18:19,715 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:19,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 27 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:18:19,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 10:18:19,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-10-16 10:18:19,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-10-16 10:18:19,738 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 11 [2022-10-16 10:18:19,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:19,742 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-10-16 10:18:19,742 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 10:18:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-10-16 10:18:19,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:18:19,743 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:19,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:18:19,796 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 10:18:19,947 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 10:18:19,948 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:19,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:19,950 INFO L85 PathProgramCache]: Analyzing trace with hash 859596587, now seen corresponding path program 1 times [2022-10-16 10:18:19,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:19,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911459153] [2022-10-16 10:18:19,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:19,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:20,077 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 10:18:20,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:20,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911459153] [2022-10-16 10:18:20,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911459153] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:20,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136569206] [2022-10-16 10:18:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:20,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:20,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:20,087 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 10:18:20,092 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 10:18:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:20,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:18:20,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:20,190 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 10:18:20,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:18:20,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136569206] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:18:20,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:18:20,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:18:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276004554] [2022-10-16 10:18:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:18:20,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:18:20,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:20,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:18:20,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:18:20,196 INFO L87 Difference]: Start difference. First operand 46 states and 50 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 10:18:20,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:20,245 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-10-16 10:18:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:18:20,247 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 10:18:20,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:20,248 INFO L225 Difference]: With dead ends: 46 [2022-10-16 10:18:20,248 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 10:18:20,251 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 10:18:20,253 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:20,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:18:20,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 10:18:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 10:18:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-10-16 10:18:20,274 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 12 [2022-10-16 10:18:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:20,274 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-10-16 10:18:20,275 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 10:18:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-10-16 10:18:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:18:20,275 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:20,276 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:18:20,309 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 10:18:20,477 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 10:18:20,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash -483778513, now seen corresponding path program 1 times [2022-10-16 10:18:20,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:20,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149803954] [2022-10-16 10:18:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:20,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:20,616 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 10:18:20,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:20,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149803954] [2022-10-16 10:18:20,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149803954] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:20,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584932081] [2022-10-16 10:18:20,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:20,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:20,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:20,621 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 10:18:20,622 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 10:18:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:20,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:18:20,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:20,744 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 10:18:20,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:20,788 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 10:18:20,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584932081] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:20,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:20,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 10:18:20,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698393217] [2022-10-16 10:18:20,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:20,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:18:20,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:20,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:18:20,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:18:20,792 INFO L87 Difference]: Start difference. First operand 42 states and 44 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 10:18:20,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:20,877 INFO L93 Difference]: Finished difference Result 103 states and 110 transitions. [2022-10-16 10:18:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:18:20,878 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 10:18:20,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:20,879 INFO L225 Difference]: With dead ends: 103 [2022-10-16 10:18:20,879 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 10:18:20,880 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 10:18:20,881 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 54 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:20,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 66 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:18:20,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 10:18:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2022-10-16 10:18:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:20,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2022-10-16 10:18:20,894 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 16 [2022-10-16 10:18:20,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:20,894 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2022-10-16 10:18:20,895 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 10:18:20,895 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2022-10-16 10:18:20,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:18:20,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:20,896 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:18:20,935 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 10:18:21,110 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 10:18:21,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:21,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1270889002, now seen corresponding path program 2 times [2022-10-16 10:18:21,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:21,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13078658] [2022-10-16 10:18:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:21,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:21,307 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 10:18:21,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:21,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13078658] [2022-10-16 10:18:21,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13078658] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:21,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253322877] [2022-10-16 10:18:21,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:18:21,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:21,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:21,312 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 10:18:21,328 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 10:18:21,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:18:21,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:21,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:18:21,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:21,472 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 10:18:21,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:21,549 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 10:18:21,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253322877] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:21,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:21,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-16 10:18:21,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144477809] [2022-10-16 10:18:21,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:21,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:18:21,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:21,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:18:21,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:18:21,552 INFO L87 Difference]: Start difference. First operand 53 states and 55 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 10:18:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:21,907 INFO L93 Difference]: Finished difference Result 167 states and 183 transitions. [2022-10-16 10:18:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 10:18:21,908 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 10:18:21,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:21,913 INFO L225 Difference]: With dead ends: 167 [2022-10-16 10:18:21,914 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 10:18:21,920 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 10:18:21,925 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 178 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:21,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 101 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:18:21,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 10:18:21,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 97. [2022-10-16 10:18:21,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 93 states have (on average 1.086021505376344) internal successors, (101), 96 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 101 transitions. [2022-10-16 10:18:21,954 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 101 transitions. Word has length 25 [2022-10-16 10:18:21,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:21,954 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 101 transitions. [2022-10-16 10:18:21,954 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 10:18:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 101 transitions. [2022-10-16 10:18:21,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:18:21,958 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:21,958 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:18:21,984 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 10:18:22,158 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 10:18:22,160 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:22,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1240077936, now seen corresponding path program 3 times [2022-10-16 10:18:22,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:22,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501310074] [2022-10-16 10:18:22,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:22,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:22,493 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 10:18:22,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:22,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501310074] [2022-10-16 10:18:22,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501310074] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:22,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425492715] [2022-10-16 10:18:22,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:18:22,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:22,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:22,496 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 10:18:22,521 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 10:18:22,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:18:22,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:22,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:18:22,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:22,676 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 10:18:22,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:22,766 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 10:18:22,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425492715] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:22,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:22,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2022-10-16 10:18:22,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035145417] [2022-10-16 10:18:22,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:22,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:18:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:18:22,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:18:22,769 INFO L87 Difference]: Start difference. First operand 97 states and 101 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 10:18:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:23,212 INFO L93 Difference]: Finished difference Result 210 states and 226 transitions. [2022-10-16 10:18:23,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 10:18:23,213 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 10:18:23,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:23,214 INFO L225 Difference]: With dead ends: 210 [2022-10-16 10:18:23,215 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 10:18:23,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=459, Invalid=873, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 10:18:23,217 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 318 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:23,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 49 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:18:23,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 10:18:23,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 112. [2022-10-16 10:18:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 109 states have (on average 1.055045871559633) internal successors, (115), 111 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:23,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 115 transitions. [2022-10-16 10:18:23,232 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 115 transitions. Word has length 48 [2022-10-16 10:18:23,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:23,232 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 115 transitions. [2022-10-16 10:18:23,233 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 10:18:23,233 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 115 transitions. [2022-10-16 10:18:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 10:18:23,235 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:23,235 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:18:23,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 10:18:23,449 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 10:18:23,450 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1920685015, now seen corresponding path program 4 times [2022-10-16 10:18:23,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:23,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384884316] [2022-10-16 10:18:23,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:23,911 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 10:18:23,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:23,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384884316] [2022-10-16 10:18:23,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384884316] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:23,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244114278] [2022-10-16 10:18:23,912 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:18:23,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:23,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:23,914 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 10:18:23,934 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 10:18:24,020 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:18:24,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:24,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 10:18:24,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:24,083 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 10:18:24,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:24,342 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 10:18:24,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244114278] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:24,343 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:24,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-10-16 10:18:24,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162091004] [2022-10-16 10:18:24,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:24,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:18:24,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:24,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:18:24,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:18:24,346 INFO L87 Difference]: Start difference. First operand 112 states and 115 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 10:18:24,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:24,624 INFO L93 Difference]: Finished difference Result 383 states and 407 transitions. [2022-10-16 10:18:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:18:24,625 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 10:18:24,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:24,627 INFO L225 Difference]: With dead ends: 383 [2022-10-16 10:18:24,627 INFO L226 Difference]: Without dead ends: 307 [2022-10-16 10:18:24,628 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 10:18:24,629 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 577 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:24,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 234 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:18:24,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-10-16 10:18:24,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 178. [2022-10-16 10:18:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 175 states have (on average 1.0571428571428572) internal successors, (185), 177 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 185 transitions. [2022-10-16 10:18:24,648 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 185 transitions. Word has length 71 [2022-10-16 10:18:24,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:24,648 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 185 transitions. [2022-10-16 10:18:24,648 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 10:18:24,648 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 185 transitions. [2022-10-16 10:18:24,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 10:18:24,652 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:24,652 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:18:24,687 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 10:18:24,865 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 10:18:24,867 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:24,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:24,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1281609584, now seen corresponding path program 5 times [2022-10-16 10:18:24,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:24,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511781918] [2022-10-16 10:18:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:24,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:25,935 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 10:18:25,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:25,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511781918] [2022-10-16 10:18:25,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511781918] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:25,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608240805] [2022-10-16 10:18:25,937 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:18:25,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:25,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:25,938 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 10:18:25,942 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 10:18:35,577 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-10-16 10:18:35,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:35,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:18:35,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:35,753 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 10:18:35,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:36,667 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 10:18:36,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608240805] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:36,667 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:36,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-10-16 10:18:36,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665739694] [2022-10-16 10:18:36,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:36,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 10:18:36,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:36,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 10:18:36,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:18:36,674 INFO L87 Difference]: Start difference. First operand 178 states and 185 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 10:18:37,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:37,530 INFO L93 Difference]: Finished difference Result 723 states and 770 transitions. [2022-10-16 10:18:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 10:18:37,530 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 10:18:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:37,534 INFO L225 Difference]: With dead ends: 723 [2022-10-16 10:18:37,535 INFO L226 Difference]: Without dead ends: 620 [2022-10-16 10:18:37,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:18:37,538 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1798 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1798 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:37,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1798 Valid, 479 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:18:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-10-16 10:18:37,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 321. [2022-10-16 10:18:37,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 318 states have (on average 1.0723270440251573) internal successors, (341), 320 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 341 transitions. [2022-10-16 10:18:37,563 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 341 transitions. Word has length 110 [2022-10-16 10:18:37,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:37,564 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 341 transitions. [2022-10-16 10:18:37,564 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 10:18:37,564 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 341 transitions. [2022-10-16 10:18:37,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 10:18:37,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:37,567 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:18:37,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:18:37,781 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 10:18:37,782 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:37,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash 556293520, now seen corresponding path program 6 times [2022-10-16 10:18:37,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:37,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208740987] [2022-10-16 10:18:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:37,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:40,807 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 10:18:40,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:40,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208740987] [2022-10-16 10:18:40,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208740987] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:40,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655058162] [2022-10-16 10:18:40,808 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:18:40,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:40,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:40,812 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 10:18:40,814 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 10:18:42,053 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2022-10-16 10:18:42,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:42,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:18:42,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:42,437 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 10:18:42,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:42,864 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 10:18:42,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655058162] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:42,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:42,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 8, 8] total 67 [2022-10-16 10:18:42,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089654872] [2022-10-16 10:18:42,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:42,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:18:42,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:42,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:18:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:18:42,870 INFO L87 Difference]: Start difference. First operand 321 states and 341 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 10:18:48,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:48,387 INFO L93 Difference]: Finished difference Result 789 states and 827 transitions. [2022-10-16 10:18:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-10-16 10:18:48,387 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 10:18:48,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:48,391 INFO L225 Difference]: With dead ends: 789 [2022-10-16 10:18:48,391 INFO L226 Difference]: Without dead ends: 621 [2022-10-16 10:18:48,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7667 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=10661, Invalid=23379, Unknown=0, NotChecked=0, Total=34040 [2022-10-16 10:18:48,408 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2206 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:48,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 147 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 10:18:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-10-16 10:18:48,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 368. [2022-10-16 10:18:48,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 365 states have (on average 1.0410958904109588) internal successors, (380), 367 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 380 transitions. [2022-10-16 10:18:48,430 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 380 transitions. Word has length 188 [2022-10-16 10:18:48,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:48,431 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 380 transitions. [2022-10-16 10:18:48,432 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 10:18:48,432 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 380 transitions. [2022-10-16 10:18:48,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-10-16 10:18:48,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:48,435 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:18:48,474 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 10:18:48,648 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 10:18:48,649 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1404568745, now seen corresponding path program 7 times [2022-10-16 10:18:48,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:48,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749040543] [2022-10-16 10:18:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:48,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:51,795 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 10:18:51,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:51,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749040543] [2022-10-16 10:18:51,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749040543] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:51,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849731420] [2022-10-16 10:18:51,796 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:18:51,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:51,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:51,798 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 10:18:51,799 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 10:18:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:51,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:18:52,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:52,218 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 10:18:52,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:18:55,817 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 10:18:55,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849731420] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:18:55,817 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:18:55,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2022-10-16 10:18:55,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19336329] [2022-10-16 10:18:55,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:18:55,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-10-16 10:18:55,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:18:55,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-10-16 10:18:55,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:18:55,825 INFO L87 Difference]: Start difference. First operand 368 states and 380 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 10:18:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:59,306 INFO L93 Difference]: Finished difference Result 1503 states and 1596 transitions. [2022-10-16 10:18:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-16 10:18:59,307 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 10:18:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:59,313 INFO L225 Difference]: With dead ends: 1503 [2022-10-16 10:18:59,314 INFO L226 Difference]: Without dead ends: 1291 [2022-10-16 10:18:59,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:18:59,318 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3693 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3693 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:59,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3693 Valid, 1083 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 10:18:59,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-10-16 10:18:59,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 662. [2022-10-16 10:18:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 659 states have (on average 1.0637329286798178) internal successors, (701), 661 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:18:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 701 transitions. [2022-10-16 10:18:59,352 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 701 transitions. Word has length 231 [2022-10-16 10:18:59,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:59,353 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 701 transitions. [2022-10-16 10:18:59,353 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 10:18:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 701 transitions. [2022-10-16 10:18:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-10-16 10:18:59,359 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:59,360 INFO L195 NwaCegarLoop]: trace histogram [104, 104, 104, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:18:59,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-10-16 10:18:59,573 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 10:18:59,574 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:18:59,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:59,575 INFO L85 PathProgramCache]: Analyzing trace with hash -416360592, now seen corresponding path program 8 times [2022-10-16 10:18:59,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:59,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236104181] [2022-10-16 10:18:59,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:59,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:19:10,054 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 10:19:10,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:19:10,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236104181] [2022-10-16 10:19:10,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236104181] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:19:10,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5297376] [2022-10-16 10:19:10,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:19:10,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:19:10,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:19:10,057 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 10:19:10,058 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 10:19:10,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:19:10,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:19:10,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 106 conjunts are in the unsatisfiable core [2022-10-16 10:19:10,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:19:10,896 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 10:19:10,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:19:25,889 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 10:19:25,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5297376] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:19:25,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:19:25,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 213 [2022-10-16 10:19:25,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933753035] [2022-10-16 10:19:25,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:19:25,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-10-16 10:19:25,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:19:25,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-10-16 10:19:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:19:25,902 INFO L87 Difference]: Start difference. First operand 662 states and 701 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 10:19:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:19:56,616 INFO L93 Difference]: Finished difference Result 2951 states and 3150 transitions. [2022-10-16 10:19:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-10-16 10:19:56,617 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 10:19:56,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:19:56,627 INFO L225 Difference]: With dead ends: 2951 [2022-10-16 10:19:56,627 INFO L226 Difference]: Without dead ends: 2604 [2022-10-16 10:19:56,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:19:56,633 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 8641 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 1570 mSolverCounterSat, 1149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8641 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 2719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1149 IncrementalHoareTripleChecker+Valid, 1570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:19:56,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8641 Valid, 1967 Invalid, 2719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1149 Valid, 1570 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 10:19:56,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2022-10-16 10:19:56,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 1245. [2022-10-16 10:19:56,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1242 states have (on average 1.076489533011272) internal successors, (1337), 1244 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:19:56,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1337 transitions. [2022-10-16 10:19:56,715 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1337 transitions. Word has length 390 [2022-10-16 10:19:56,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:19:56,715 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1337 transitions. [2022-10-16 10:19:56,716 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 10:19:56,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1337 transitions. [2022-10-16 10:19:56,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2022-10-16 10:19:56,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:19:56,733 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:19:56,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:19:56,949 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 10:19:56,950 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:19:56,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:19:56,951 INFO L85 PathProgramCache]: Analyzing trace with hash 950267536, now seen corresponding path program 9 times [2022-10-16 10:19:56,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:19:56,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436438681] [2022-10-16 10:19:56,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:19:56,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:19:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:20:35,957 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 10:20:35,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:20:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436438681] [2022-10-16 10:20:35,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436438681] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:20:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177689783] [2022-10-16 10:20:35,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:20:35,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:20:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:20:35,961 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 10:20:35,963 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 10:20:43,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-10-16 10:20:43,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:20:43,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:20:43,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:20:45,449 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 10:20:45,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:20:48,073 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 10:20:48,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177689783] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:20:48,074 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:20:48,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 16, 16] total 243 [2022-10-16 10:20:48,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047800743] [2022-10-16 10:20:48,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:20:48,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 243 states [2022-10-16 10:20:48,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:20:48,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2022-10-16 10:20:48,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23073, Invalid=35733, Unknown=0, NotChecked=0, Total=58806 [2022-10-16 10:20:48,083 INFO L87 Difference]: Start difference. First operand 1245 states and 1337 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)