/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_08.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:20:58,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:20:58,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:20:58,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:20:58,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:20:58,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:20:58,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:20:58,944 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 10:20:58,974 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:20:58,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:20:58,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:20:58,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:20:58,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:20:58,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:20:58,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:20:58,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:20:58,983 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:20:58,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:20:58,983 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:20:58,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:20:58,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:20:58,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:20:58,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:20:58,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:20:58,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:20:58,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:20:58,986 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:20:58,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:20:58,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:20:58,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:20:58,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:20:58,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:20:58,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:20:58,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:20:58,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:20:58,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:20:58,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:20:58,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:20:58,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:20:58,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:20:58,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:20:58,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:20:59,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:20:59,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:20:59,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:20:59,455 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:20:59,456 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:20:59,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_two_index_08.i [2022-10-16 10:20:59,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0e855b5/3f65fc1a08db447dbaf0dc23a4472767/FLAGf450a1632 [2022-10-16 10:21:00,132 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:21:00,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_08.i [2022-10-16 10:21:00,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0e855b5/3f65fc1a08db447dbaf0dc23a4472767/FLAGf450a1632 [2022-10-16 10:21:00,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0e855b5/3f65fc1a08db447dbaf0dc23a4472767 [2022-10-16 10:21:00,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:21:00,482 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:21:00,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:21:00,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:21:00,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:21:00,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19705a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00, skipping insertion in model container [2022-10-16 10:21:00,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:21:00,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:21:00,740 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_08.i[814,827] [2022-10-16 10:21:00,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:21:00,767 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:21:00,782 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_08.i[814,827] [2022-10-16 10:21:00,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:21:00,807 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:21:00,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00 WrapperNode [2022-10-16 10:21:00,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:21:00,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:21:00,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:21:00,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:21:00,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,851 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2022-10-16 10:21:00,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:21:00,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:21:00,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:21:00,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:21:00,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,879 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:21:00,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:21:00,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:21:00,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:21:00,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (1/1) ... [2022-10-16 10:21:00,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:21:00,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:00,925 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 10:21:00,948 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 10:21:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:21:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:21:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:21:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:21:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:21:00,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:21:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:21:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:21:01,072 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:21:01,075 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:21:01,266 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:21:01,274 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:21:01,274 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:21:01,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:21:01 BoogieIcfgContainer [2022-10-16 10:21:01,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:21:01,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:21:01,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:21:01,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:21:01,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:21:00" (1/3) ... [2022-10-16 10:21:01,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203b18a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:21:01, skipping insertion in model container [2022-10-16 10:21:01,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:00" (2/3) ... [2022-10-16 10:21:01,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203b18a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:21:01, skipping insertion in model container [2022-10-16 10:21:01,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:21:01" (3/3) ... [2022-10-16 10:21:01,288 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_two_index_08.i [2022-10-16 10:21:01,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:21:01,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 10:21:01,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:21:01,432 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;@622c9ce2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:21:01,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 10:21:01,438 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 10:21:01,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 10:21:01,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:01,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 10:21:01,447 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 10:21:01,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:01,454 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-16 10:21:01,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:01,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489215554] [2022-10-16 10:21:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:01,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:01,821 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 10:21:01,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:01,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489215554] [2022-10-16 10:21:01,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489215554] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:01,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:01,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:21:01,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090283370] [2022-10-16 10:21:01,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:01,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:21:01,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:01,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:21:01,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:21:01,870 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 10:21:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:01,934 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2022-10-16 10:21:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:21:01,938 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 10:21:01,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:01,947 INFO L225 Difference]: With dead ends: 82 [2022-10-16 10:21:01,948 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 10:21:01,951 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 10:21:01,956 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 10:21:01,957 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 10:21:01,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 10:21:01,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-16 10:21:01,994 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 10:21:01,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2022-10-16 10:21:01,997 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 4 [2022-10-16 10:21:01,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:01,998 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2022-10-16 10:21:01,998 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 10:21:01,999 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2022-10-16 10:21:01,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:21:01,999 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:01,999 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-16 10:21:02,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:21:02,000 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 10:21:02,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:02,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-16 10:21:02,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:02,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393908725] [2022-10-16 10:21:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:02,093 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 10:21:02,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:02,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393908725] [2022-10-16 10:21:02,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393908725] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:02,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:02,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:21:02,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26691249] [2022-10-16 10:21:02,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:02,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:21:02,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:02,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:21:02,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:21:02,102 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 10:21:02,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:02,156 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2022-10-16 10:21:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:21:02,156 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 10:21:02,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:02,160 INFO L225 Difference]: With dead ends: 61 [2022-10-16 10:21:02,160 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 10:21:02,160 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 10:21:02,165 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 10:21:02,166 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 10:21:02,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 10:21:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-10-16 10:21:02,178 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 10:21:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-10-16 10:21:02,180 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 7 [2022-10-16 10:21:02,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:02,180 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-10-16 10:21:02,181 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 10:21:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-10-16 10:21:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:21:02,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:02,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-16 10:21:02,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:21:02,183 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 10:21:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-16 10:21:02,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:02,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198125771] [2022-10-16 10:21:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:02,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:02,308 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 10:21:02,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:02,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198125771] [2022-10-16 10:21:02,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198125771] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:02,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830388102] [2022-10-16 10:21:02,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:02,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:02,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:02,324 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 10:21:02,327 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 10:21:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:02,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:21:02,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:02,444 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 10:21:02,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:21:02,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830388102] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:02,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:21:02,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:21:02,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813703730] [2022-10-16 10:21:02,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:02,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:21:02,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:02,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:21:02,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:02,448 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 10:21:02,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:02,484 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-10-16 10:21:02,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:21:02,485 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 10:21:02,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:02,486 INFO L225 Difference]: With dead ends: 38 [2022-10-16 10:21:02,486 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 10:21:02,487 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 10:21:02,489 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 10:21:02,490 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 10:21:02,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 10:21:02,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-10-16 10:21:02,496 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 10:21:02,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-10-16 10:21:02,500 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 8 [2022-10-16 10:21:02,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:02,501 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-10-16 10:21:02,501 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 10:21:02,501 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-10-16 10:21:02,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:21:02,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:02,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:02,533 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 10:21:02,705 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 10:21:02,706 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 10:21:02,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1080649737, now seen corresponding path program 1 times [2022-10-16 10:21:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:02,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248676933] [2022-10-16 10:21:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:02,879 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 10:21:02,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:02,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248676933] [2022-10-16 10:21:02,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248676933] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:02,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186000702] [2022-10-16 10:21:02,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:02,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:02,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:02,885 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 10:21:02,887 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 10:21:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:02,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:21:02,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:03,011 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 10:21:03,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:21:03,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186000702] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:03,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:21:03,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:21:03,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562814700] [2022-10-16 10:21:03,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:03,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:21:03,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:03,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:21:03,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:03,023 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 10:21:03,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:03,105 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-10-16 10:21:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:21:03,106 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 10:21:03,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:03,108 INFO L225 Difference]: With dead ends: 52 [2022-10-16 10:21:03,108 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 10:21:03,108 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 10:21:03,110 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 10:21:03,111 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 10:21:03,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 10:21:03,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-10-16 10:21:03,119 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 10:21:03,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-10-16 10:21:03,121 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 11 [2022-10-16 10:21:03,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:03,121 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-10-16 10:21:03,121 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 10:21:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-10-16 10:21:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:21:03,122 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:03,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:03,164 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 10:21:03,336 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 10:21:03,337 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 10:21:03,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:03,339 INFO L85 PathProgramCache]: Analyzing trace with hash 859596587, now seen corresponding path program 1 times [2022-10-16 10:21:03,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:03,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529973598] [2022-10-16 10:21:03,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:03,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:03,458 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 10:21:03,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:03,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529973598] [2022-10-16 10:21:03,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529973598] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:03,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30687958] [2022-10-16 10:21:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:03,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:03,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:03,473 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 10:21:03,480 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 10:21:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:03,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:21:03,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:03,582 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 10:21:03,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:21:03,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30687958] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:03,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:21:03,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:21:03,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770129033] [2022-10-16 10:21:03,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:03,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:21:03,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:03,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:21:03,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:03,589 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 10:21:03,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:03,635 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-10-16 10:21:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:21:03,635 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 10:21:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:03,636 INFO L225 Difference]: With dead ends: 46 [2022-10-16 10:21:03,637 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 10:21:03,637 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 10:21:03,641 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 10:21:03,642 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 10:21:03,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 10:21:03,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 10:21:03,651 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 10:21:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-10-16 10:21:03,652 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 12 [2022-10-16 10:21:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:03,653 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-10-16 10:21:03,653 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 10:21:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-10-16 10:21:03,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:21:03,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:03,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:03,680 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 10:21:03,861 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 10:21:03,862 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 10:21:03,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:03,863 INFO L85 PathProgramCache]: Analyzing trace with hash -483778513, now seen corresponding path program 1 times [2022-10-16 10:21:03,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:03,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213676269] [2022-10-16 10:21:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:04,002 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 10:21:04,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:04,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213676269] [2022-10-16 10:21:04,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213676269] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:04,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853126787] [2022-10-16 10:21:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:04,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:04,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:04,010 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 10:21:04,032 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 10:21:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:04,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:21:04,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:04,095 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 10:21:04,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:04,120 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 10:21:04,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853126787] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:04,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:04,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 10:21:04,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203743754] [2022-10-16 10:21:04,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:04,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:21:04,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:04,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:21:04,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:21:04,123 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 10:21:04,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:04,216 INFO L93 Difference]: Finished difference Result 103 states and 110 transitions. [2022-10-16 10:21:04,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:21:04,217 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 10:21:04,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:04,218 INFO L225 Difference]: With dead ends: 103 [2022-10-16 10:21:04,218 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 10:21:04,219 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 10:21:04,220 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 10:21:04,221 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 10:21:04,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 10:21:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2022-10-16 10:21:04,229 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 10:21:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2022-10-16 10:21:04,230 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 16 [2022-10-16 10:21:04,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:04,231 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2022-10-16 10:21:04,231 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 10:21:04,231 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2022-10-16 10:21:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:21:04,232 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:04,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:04,267 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 10:21:04,446 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 10:21:04,447 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 10:21:04,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:04,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1270889002, now seen corresponding path program 2 times [2022-10-16 10:21:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:04,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125836928] [2022-10-16 10:21:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:04,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:04,650 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 10:21:04,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:04,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125836928] [2022-10-16 10:21:04,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125836928] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:04,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54973966] [2022-10-16 10:21:04,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:21:04,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:04,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:04,656 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 10:21:04,662 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 10:21:04,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:21:04,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:04,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:21:04,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:04,826 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 10:21:04,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:04,905 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 10:21:04,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54973966] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:04,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:04,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-16 10:21:04,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441559401] [2022-10-16 10:21:04,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:04,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:21:04,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:04,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:21:04,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:21:04,908 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 10:21:05,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:05,213 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2022-10-16 10:21:05,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:21:05,214 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 10:21:05,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:05,215 INFO L225 Difference]: With dead ends: 125 [2022-10-16 10:21:05,215 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 10:21:05,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=225, Invalid=375, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:21:05,218 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 114 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:05,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 57 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:21:05,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 10:21:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-10-16 10:21:05,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 81 states have (on average 1.0740740740740742) internal successors, (87), 84 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 10:21:05,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2022-10-16 10:21:05,230 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 25 [2022-10-16 10:21:05,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:05,231 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2022-10-16 10:21:05,231 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 10:21:05,231 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2022-10-16 10:21:05,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:21:05,233 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:05,233 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:21:05,272 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 10:21:05,447 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 10:21:05,448 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 10:21:05,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:05,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1240077936, now seen corresponding path program 3 times [2022-10-16 10:21:05,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:05,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549689544] [2022-10-16 10:21:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:05,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:05,825 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 10:21:05,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:05,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549689544] [2022-10-16 10:21:05,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549689544] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:05,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911439793] [2022-10-16 10:21:05,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:21:05,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:05,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:05,828 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 10:21:05,842 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 10:21:05,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:21:05,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:05,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:21:05,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:06,015 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 10:21:06,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:06,140 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 10:21:06,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911439793] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:06,140 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:06,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2022-10-16 10:21:06,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718539678] [2022-10-16 10:21:06,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:06,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:21:06,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:06,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:21:06,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:21:06,146 INFO L87 Difference]: Start difference. First operand 85 states and 87 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 10:21:06,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:06,480 INFO L93 Difference]: Finished difference Result 180 states and 196 transitions. [2022-10-16 10:21:06,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:21:06,481 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 10:21:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:06,487 INFO L225 Difference]: With dead ends: 180 [2022-10-16 10:21:06,488 INFO L226 Difference]: Without dead ends: 128 [2022-10-16 10:21:06,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2022-10-16 10:21:06,490 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 349 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:06,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 45 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:21:06,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-10-16 10:21:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 112. [2022-10-16 10:21:06,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 109 states have (on average 1.0825688073394495) internal successors, (118), 111 states have internal predecessors, (118), 0 states have call successors, (0), 0 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 10:21:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 118 transitions. [2022-10-16 10:21:06,527 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 118 transitions. Word has length 48 [2022-10-16 10:21:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:06,528 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 118 transitions. [2022-10-16 10:21:06,528 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 10:21:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2022-10-16 10:21:06,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 10:21:06,533 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:06,533 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:21:06,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:06,745 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 10:21:06,746 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 10:21:06,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1920685015, now seen corresponding path program 4 times [2022-10-16 10:21:06,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:06,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313163984] [2022-10-16 10:21:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:06,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:07,122 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 10:21:07,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:07,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313163984] [2022-10-16 10:21:07,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313163984] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:07,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916267211] [2022-10-16 10:21:07,124 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:21:07,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:07,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:07,125 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 10:21:07,127 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 10:21:07,214 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:21:07,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:07,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 10:21:07,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:07,283 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 10:21:07,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:07,547 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 10:21:07,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916267211] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:07,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:07,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-10-16 10:21:07,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275106620] [2022-10-16 10:21:07,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:07,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:21:07,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:07,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:21:07,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:21:07,551 INFO L87 Difference]: Start difference. First operand 112 states and 118 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 10:21:07,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:07,730 INFO L93 Difference]: Finished difference Result 245 states and 269 transitions. [2022-10-16 10:21:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:21:07,731 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 10:21:07,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:07,732 INFO L225 Difference]: With dead ends: 245 [2022-10-16 10:21:07,732 INFO L226 Difference]: Without dead ends: 169 [2022-10-16 10:21:07,733 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 10:21:07,734 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 196 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:07,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 129 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:21:07,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-16 10:21:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 151. [2022-10-16 10:21:07,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 148 states have (on average 1.0472972972972974) internal successors, (155), 150 states have internal predecessors, (155), 0 states have call successors, (0), 0 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 10:21:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 155 transitions. [2022-10-16 10:21:07,749 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 155 transitions. Word has length 71 [2022-10-16 10:21:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:07,749 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 155 transitions. [2022-10-16 10:21:07,750 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 10:21:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 155 transitions. [2022-10-16 10:21:07,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 10:21:07,752 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:07,752 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:21:07,782 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 10:21:07,966 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 10:21:07,967 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 10:21:07,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:07,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1281609584, now seen corresponding path program 5 times [2022-10-16 10:21:07,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:07,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400912069] [2022-10-16 10:21:07,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:07,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:09,011 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 10:21:09,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:09,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400912069] [2022-10-16 10:21:09,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400912069] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:09,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449643125] [2022-10-16 10:21:09,012 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:21:09,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:09,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:09,013 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 10:21:09,038 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 10:21:14,078 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-10-16 10:21:14,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:14,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:21:14,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:14,224 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 10:21:14,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:15,125 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 10:21:15,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449643125] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:15,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:15,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-10-16 10:21:15,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026260376] [2022-10-16 10:21:15,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:15,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 10:21:15,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:15,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 10:21:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:21:15,131 INFO L87 Difference]: Start difference. First operand 151 states and 155 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 10:21:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:15,508 INFO L93 Difference]: Finished difference Result 354 states and 388 transitions. [2022-10-16 10:21:15,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 10:21:15,509 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 10:21:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:15,511 INFO L225 Difference]: With dead ends: 354 [2022-10-16 10:21:15,511 INFO L226 Difference]: Without dead ends: 278 [2022-10-16 10:21:15,513 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 10:21:15,514 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 402 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:15,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 243 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:21:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-10-16 10:21:15,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 231. [2022-10-16 10:21:15,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.0219298245614035) internal successors, (233), 230 states have internal predecessors, (233), 0 states have call successors, (0), 0 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 10:21:15,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 233 transitions. [2022-10-16 10:21:15,531 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 233 transitions. Word has length 110 [2022-10-16 10:21:15,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:15,532 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 233 transitions. [2022-10-16 10:21:15,532 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 10:21:15,532 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 233 transitions. [2022-10-16 10:21:15,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 10:21:15,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:15,535 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:21:15,587 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 10:21:15,736 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 10:21:15,736 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 10:21:15,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:15,737 INFO L85 PathProgramCache]: Analyzing trace with hash 556293520, now seen corresponding path program 6 times [2022-10-16 10:21:15,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:15,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891456025] [2022-10-16 10:21:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:19,076 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 10:21:19,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:19,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891456025] [2022-10-16 10:21:19,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891456025] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:19,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623923536] [2022-10-16 10:21:19,077 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:21:19,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:19,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:19,078 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 10:21:19,088 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 10:21:20,089 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2022-10-16 10:21:20,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:20,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:21:20,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:20,509 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 10:21:20,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:20,942 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 10:21:20,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623923536] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:20,943 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:20,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 8, 8] total 67 [2022-10-16 10:21:20,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836305261] [2022-10-16 10:21:20,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:20,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:21:20,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:20,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:21:20,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:21:20,948 INFO L87 Difference]: Start difference. First operand 231 states and 233 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 10:21:23,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:23,243 INFO L93 Difference]: Finished difference Result 413 states and 440 transitions. [2022-10-16 10:21:23,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-10-16 10:21:23,244 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 10:21:23,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:23,247 INFO L225 Difference]: With dead ends: 413 [2022-10-16 10:21:23,247 INFO L226 Difference]: Without dead ends: 335 [2022-10-16 10:21:23,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2591 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5681, Invalid=10831, Unknown=0, NotChecked=0, Total=16512 [2022-10-16 10:21:23,255 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 936 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:23,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 104 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:21:23,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-10-16 10:21:23,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 316. [2022-10-16 10:21:23,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 313 states have (on average 1.038338658146965) internal successors, (325), 315 states have internal predecessors, (325), 0 states have call successors, (0), 0 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 10:21:23,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 325 transitions. [2022-10-16 10:21:23,271 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 325 transitions. Word has length 188 [2022-10-16 10:21:23,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:23,272 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 325 transitions. [2022-10-16 10:21:23,272 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 10:21:23,272 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 325 transitions. [2022-10-16 10:21:23,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-10-16 10:21:23,275 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:23,275 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:21:23,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-10-16 10:21:23,476 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 10:21:23,476 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 10:21:23,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:23,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1404568745, now seen corresponding path program 7 times [2022-10-16 10:21:23,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:23,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537939539] [2022-10-16 10:21:23,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:23,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:26,801 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 10:21:26,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:26,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537939539] [2022-10-16 10:21:26,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537939539] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:26,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025006837] [2022-10-16 10:21:26,802 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:21:26,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:26,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:26,803 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 10:21:26,804 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 10:21:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:27,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:21:27,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:27,218 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 10:21:27,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:30,850 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 10:21:30,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025006837] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:30,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:30,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2022-10-16 10:21:30,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605688408] [2022-10-16 10:21:30,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:30,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-10-16 10:21:30,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:30,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-10-16 10:21:30,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:21:30,860 INFO L87 Difference]: Start difference. First operand 316 states and 325 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 10:21:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:31,789 INFO L93 Difference]: Finished difference Result 731 states and 801 transitions. [2022-10-16 10:21:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-16 10:21:31,789 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 10:21:31,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:31,794 INFO L225 Difference]: With dead ends: 731 [2022-10-16 10:21:31,794 INFO L226 Difference]: Without dead ends: 571 [2022-10-16 10:21:31,800 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 10:21:31,801 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 972 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:31,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 517 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:21:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-10-16 10:21:31,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 475. [2022-10-16 10:21:31,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 472 states have (on average 1.0105932203389831) internal successors, (477), 474 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:31,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 477 transitions. [2022-10-16 10:21:31,824 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 477 transitions. Word has length 231 [2022-10-16 10:21:31,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:31,825 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 477 transitions. [2022-10-16 10:21:31,826 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 10:21:31,826 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 477 transitions. [2022-10-16 10:21:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-10-16 10:21:31,832 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:31,832 INFO L195 NwaCegarLoop]: trace histogram [104, 104, 104, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:21:31,868 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 10:21:32,047 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 10:21:32,048 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 10:21:32,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:32,049 INFO L85 PathProgramCache]: Analyzing trace with hash -416360592, now seen corresponding path program 8 times [2022-10-16 10:21:32,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:32,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724112170] [2022-10-16 10:21:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:32,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:42,795 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 10:21:42,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:42,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724112170] [2022-10-16 10:21:42,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724112170] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:42,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951363053] [2022-10-16 10:21:42,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:21:42,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:42,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:42,798 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 10:21:42,798 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 10:21:43,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:21:43,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:43,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 106 conjunts are in the unsatisfiable core [2022-10-16 10:21:43,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:43,568 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 10:21:43,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:58,388 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 10:21:58,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951363053] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:58,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:58,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 213 [2022-10-16 10:21:58,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493231409] [2022-10-16 10:21:58,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:58,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-10-16 10:21:58,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:58,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-10-16 10:21:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:21:58,407 INFO L87 Difference]: Start difference. First operand 475 states and 477 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 10:22:03,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:03,574 INFO L93 Difference]: Finished difference Result 1282 states and 1404 transitions. [2022-10-16 10:22:03,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-10-16 10:22:03,574 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 10:22:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:03,581 INFO L225 Difference]: With dead ends: 1282 [2022-10-16 10:22:03,581 INFO L226 Difference]: Without dead ends: 1122 [2022-10-16 10:22:03,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:22:03,587 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2557 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:03,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2557 Valid, 876 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 10:22:03,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-10-16 10:22:03,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 855. [2022-10-16 10:22:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 852 states have (on average 1.0199530516431925) internal successors, (869), 854 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:03,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 869 transitions. [2022-10-16 10:22:03,627 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 869 transitions. Word has length 390 [2022-10-16 10:22:03,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:03,628 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 869 transitions. [2022-10-16 10:22:03,629 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 10:22:03,629 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 869 transitions. [2022-10-16 10:22:03,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2022-10-16 10:22:03,649 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:03,650 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:22:03,686 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 10:22:03,865 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 10:22:03,866 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 10:22:03,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:03,867 INFO L85 PathProgramCache]: Analyzing trace with hash 950267536, now seen corresponding path program 9 times [2022-10-16 10:22:03,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:03,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094327090] [2022-10-16 10:22:03,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:03,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:41,845 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 10:22:41,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:41,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094327090] [2022-10-16 10:22:41,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094327090] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:41,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482917653] [2022-10-16 10:22:41,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:22:41,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:41,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:41,848 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 10:22:41,859 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 10:22:49,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-10-16 10:22:49,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:22:49,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:22:49,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:52,096 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 10:22:52,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:54,903 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 10:22:54,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482917653] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:54,903 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:54,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 16, 16] total 243 [2022-10-16 10:22:54,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452256677] [2022-10-16 10:22:54,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:54,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 243 states [2022-10-16 10:22:54,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2022-10-16 10:22:54,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23073, Invalid=35733, Unknown=0, NotChecked=0, Total=58806 [2022-10-16 10:22:54,914 INFO L87 Difference]: Start difference. First operand 855 states and 869 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) [2022-10-16 10:23:37,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:23:37,060 INFO L93 Difference]: Finished difference Result 1352 states and 1403 transitions. [2022-10-16 10:23:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-10-16 10:23:37,061 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 708 [2022-10-16 10:23:37,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:23:37,067 INFO L225 Difference]: With dead ends: 1352 [2022-10-16 10:23:37,067 INFO L226 Difference]: Without dead ends: 1130 [2022-10-16 10:23:37,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1908 GetRequests, 1386 SyntacticMatches, 0 SemanticMatches, 522 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45730 ImplicationChecksByTransitivity, 55.0s TimeCoverageRelationStatistics Valid=92654, Invalid=181398, Unknown=0, NotChecked=0, Total=274052 [2022-10-16 10:23:37,085 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5952 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 2105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5952 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 4070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2105 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:23:37,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5952 Valid, 210 Invalid, 4070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2105 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 10:23:37,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2022-10-16 10:23:37,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 964. [2022-10-16 10:23:37,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 961 states have (on average 1.0083246618106139) internal successors, (969), 963 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 969 transitions. [2022-10-16 10:23:37,137 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 969 transitions. Word has length 708 [2022-10-16 10:23:37,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:23:37,138 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 969 transitions. [2022-10-16 10:23:37,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-10-16 10:23:37,139 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 969 transitions. [2022-10-16 10:23:37,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2022-10-16 10:23:37,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:23:37,146 INFO L195 NwaCegarLoop]: trace histogram [211, 211, 211, 31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-10-16 10:23:37,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:23:37,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:23:37,360 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:23:37,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:23:37,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1574485673, now seen corresponding path program 10 times [2022-10-16 10:23:37,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:23:37,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621410049] [2022-10-16 10:23:37,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:23:37,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:23:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:24:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 68971 backedges. 0 proven. 66676 refuted. 0 times theorem prover too weak. 2295 trivial. 0 not checked. [2022-10-16 10:24:18,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:24:18,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621410049] [2022-10-16 10:24:18,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621410049] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:24:18,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717969721] [2022-10-16 10:24:18,938 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:24:18,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:24:18,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:24:18,939 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:24:18,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:24:19,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:24:19,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:24:19,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 213 conjunts are in the unsatisfiable core [2022-10-16 10:24:19,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:24:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 68971 backedges. 0 proven. 66676 refuted. 0 times theorem prover too weak. 2295 trivial. 0 not checked. [2022-10-16 10:24:20,562 INFO L328 TraceCheckSpWp]: Computing backward predicates...