/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/loop-lit/afnp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:29:01,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:29:01,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:29:01,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:29:01,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:29:01,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:29:01,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:29:01,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:29:01,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:29:01,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:29:01,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:29:01,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:29:01,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:29:01,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:29:01,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:29:01,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:29:01,410 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:29:01,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:29:01,410 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:29:01,410 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:29:01,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:29:01,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:29:01,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:29:01,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:29:01,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:29:01,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:29:01,412 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:29:01,412 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:29:01,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:29:01,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:29:01,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:29:01,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:29:01,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:29:01,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:29:01,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:29:01,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:29:01,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:29:01,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:29:01,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:29:01,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:29:01,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:29:01,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:29:01,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:29:01,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:29:01,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:29:01,834 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:29:01,835 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:29:01,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/afnp2014.i [2022-10-16 14:29:01,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeabd0f48/c1950a00a31a4fe69ba6b3e9e20f0f82/FLAG68cfc30f8 [2022-10-16 14:29:02,420 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:29:02,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/afnp2014.i [2022-10-16 14:29:02,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeabd0f48/c1950a00a31a4fe69ba6b3e9e20f0f82/FLAG68cfc30f8 [2022-10-16 14:29:02,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeabd0f48/c1950a00a31a4fe69ba6b3e9e20f0f82 [2022-10-16 14:29:02,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:29:02,793 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:29:02,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:29:02,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:29:02,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:29:02,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:02" (1/1) ... [2022-10-16 14:29:02,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbb88a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:02, skipping insertion in model container [2022-10-16 14:29:02,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:02" (1/1) ... [2022-10-16 14:29:02,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:29:02,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:29:02,990 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/loop-lit/afnp2014.i[895,908] [2022-10-16 14:29:03,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:29:03,015 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:29:03,028 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/loop-lit/afnp2014.i[895,908] [2022-10-16 14:29:03,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:29:03,046 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:29:03,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03 WrapperNode [2022-10-16 14:29:03,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:29:03,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:29:03,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:29:03,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:29:03,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,081 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-10-16 14:29:03,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:29:03,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:29:03,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:29:03,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:29:03,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,102 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:29:03,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:29:03,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:29:03,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:29:03,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (1/1) ... [2022-10-16 14:29:03,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:29:03,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:03,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:29:03,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:29:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:29:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:29:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:29:03,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:29:03,273 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:29:03,276 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:29:03,415 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:29:03,423 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:29:03,423 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:29:03,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:03 BoogieIcfgContainer [2022-10-16 14:29:03,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:29:03,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:29:03,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:29:03,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:29:03,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:02" (1/3) ... [2022-10-16 14:29:03,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4306a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:03, skipping insertion in model container [2022-10-16 14:29:03,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:03" (2/3) ... [2022-10-16 14:29:03,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4306a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:03, skipping insertion in model container [2022-10-16 14:29:03,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:03" (3/3) ... [2022-10-16 14:29:03,438 INFO L112 eAbstractionObserver]: Analyzing ICFG afnp2014.i [2022-10-16 14:29:03,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:29:03,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:29:03,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:29:03,541 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;@9ad7471, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:29:03,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:29:03,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:29:03,555 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:03,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:29:03,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:29:03,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash 889569447, now seen corresponding path program 1 times [2022-10-16 14:29:03,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:03,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802861006] [2022-10-16 14:29:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:03,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:04,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:04,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802861006] [2022-10-16 14:29:04,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802861006] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:04,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:04,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:04,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387854703] [2022-10-16 14:29:04,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:04,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:04,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:04,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:04,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:04,129 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 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 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:04,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:04,245 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-10-16 14:29:04,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:04,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 14:29:04,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:04,258 INFO L225 Difference]: With dead ends: 45 [2022-10-16 14:29:04,258 INFO L226 Difference]: Without dead ends: 20 [2022-10-16 14:29:04,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:04,271 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:04,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:04,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-16 14:29:04,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-10-16 14:29:04,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.375) internal successors, (22), 19 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 14:29:04,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-10-16 14:29:04,326 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 6 [2022-10-16 14:29:04,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:04,327 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-10-16 14:29:04,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-10-16 14:29:04,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:29:04,329 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:04,329 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:04,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:29:04,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:29:04,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:04,331 INFO L85 PathProgramCache]: Analyzing trace with hash -822685100, now seen corresponding path program 1 times [2022-10-16 14:29:04,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:04,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894049418] [2022-10-16 14:29:04,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:04,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:04,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:04,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894049418] [2022-10-16 14:29:04,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894049418] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:04,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363735448] [2022-10-16 14:29:04,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:04,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:04,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:04,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:04,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:29:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:04,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:29:04,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:04,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:04,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363735448] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:04,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:04,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:29:04,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239509198] [2022-10-16 14:29:04,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:04,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:29:04,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:29:04,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=58, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:29:04,795 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:04,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:04,893 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-10-16 14:29:04,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:29:04,893 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:29:04,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:04,899 INFO L225 Difference]: With dead ends: 35 [2022-10-16 14:29:04,899 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 14:29:04,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=82, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:29:04,902 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 30 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:04,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 22 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:04,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 14:29:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2022-10-16 14:29:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-10-16 14:29:04,911 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 13 [2022-10-16 14:29:04,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:04,912 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-10-16 14:29:04,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-10-16 14:29:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:29:04,913 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:04,913 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:04,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:05,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:05,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:29:05,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash 266565728, now seen corresponding path program 1 times [2022-10-16 14:29:05,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:05,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786698480] [2022-10-16 14:29:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:05,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:05,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786698480] [2022-10-16 14:29:05,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786698480] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:05,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808781228] [2022-10-16 14:29:05,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:05,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:05,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:05,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:05,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:29:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:05,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:29:05,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:05,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:05,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808781228] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:05,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:05,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-10-16 14:29:05,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250494302] [2022-10-16 14:29:05,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:05,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:29:05,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:05,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:29:05,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:29:05,535 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:05,582 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-10-16 14:29:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:29:05,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-10-16 14:29:05,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:05,584 INFO L225 Difference]: With dead ends: 31 [2022-10-16 14:29:05,585 INFO L226 Difference]: Without dead ends: 29 [2022-10-16 14:29:05,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:29:05,587 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:05,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 17 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:05,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-16 14:29:05,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-10-16 14:29:05,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:05,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-10-16 14:29:05,595 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 14 [2022-10-16 14:29:05,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:05,596 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-10-16 14:29:05,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:05,596 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-10-16 14:29:05,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:29:05,597 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:05,597 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:29:05,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 14:29:05,811 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,SelfDestructingSolverStorable2 [2022-10-16 14:29:05,812 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:29:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:05,813 INFO L85 PathProgramCache]: Analyzing trace with hash -326396970, now seen corresponding path program 1 times [2022-10-16 14:29:05,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:05,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105204478] [2022-10-16 14:29:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:05,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:05,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:05,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105204478] [2022-10-16 14:29:05,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105204478] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:05,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779498710] [2022-10-16 14:29:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:05,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:05,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:05,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:05,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:29:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:05,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:05,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:29:05,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:05,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779498710] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:05,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:05,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-16 14:29:05,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237069145] [2022-10-16 14:29:05,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:05,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:05,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:05,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:05,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:05,957 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:05,997 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2022-10-16 14:29:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:29:05,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 14:29:05,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:05,999 INFO L225 Difference]: With dead ends: 56 [2022-10-16 14:29:05,999 INFO L226 Difference]: Without dead ends: 31 [2022-10-16 14:29:06,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:06,001 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:06,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:06,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-16 14:29:06,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2022-10-16 14:29:06,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:06,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-10-16 14:29:06,009 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 15 [2022-10-16 14:29:06,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:06,009 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-10-16 14:29:06,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:06,010 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-10-16 14:29:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:29:06,011 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:06,011 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1] [2022-10-16 14:29:06,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:06,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:06,225 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:29:06,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:06,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1500376332, now seen corresponding path program 2 times [2022-10-16 14:29:06,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:06,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404497255] [2022-10-16 14:29:06,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:06,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:06,462 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:06,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:06,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404497255] [2022-10-16 14:29:06,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404497255] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:06,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974709841] [2022-10-16 14:29:06,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:06,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:06,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:06,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:06,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:29:06,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:06,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:06,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 14:29:06,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:06,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:06,976 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:06,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974709841] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:06,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:06,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 24 [2022-10-16 14:29:06,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095670347] [2022-10-16 14:29:06,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:06,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:29:06,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:06,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:29:06,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=397, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:29:06,980 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 25 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:07,420 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2022-10-16 14:29:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 14:29:07,421 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 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 27 [2022-10-16 14:29:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:07,422 INFO L225 Difference]: With dead ends: 78 [2022-10-16 14:29:07,422 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:29:07,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=538, Invalid=944, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 14:29:07,425 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 127 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:07,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 44 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:07,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:29:07,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2022-10-16 14:29:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:07,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2022-10-16 14:29:07,434 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 27 [2022-10-16 14:29:07,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:07,435 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2022-10-16 14:29:07,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:07,435 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2022-10-16 14:29:07,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 14:29:07,437 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:07,437 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1, 1] [2022-10-16 14:29:07,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:07,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:07,653 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:29:07,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:07,654 INFO L85 PathProgramCache]: Analyzing trace with hash 315214900, now seen corresponding path program 3 times [2022-10-16 14:29:07,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:07,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970181334] [2022-10-16 14:29:07,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:07,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:08,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:08,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970181334] [2022-10-16 14:29:08,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970181334] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:08,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958764613] [2022-10-16 14:29:08,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:29:08,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:08,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:08,148 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:08,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:29:08,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-16 14:29:08,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:08,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:29:08,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:08,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:09,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958764613] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:09,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:09,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 16] total 48 [2022-10-16 14:29:09,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726945176] [2022-10-16 14:29:09,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:09,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 14:29:09,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:09,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 14:29:09,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=1834, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 14:29:09,298 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 49 states, 48 states have (on average 3.3958333333333335) internal successors, (163), 49 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:11,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:11,024 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2022-10-16 14:29:11,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-16 14:29:11,025 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 3.3958333333333335) internal successors, (163), 49 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-16 14:29:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:11,027 INFO L225 Difference]: With dead ends: 137 [2022-10-16 14:29:11,027 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 14:29:11,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2415 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2103, Invalid=5379, Unknown=0, NotChecked=0, Total=7482 [2022-10-16 14:29:11,032 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 449 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:11,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 286 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:29:11,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 14:29:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 112. [2022-10-16 14:29:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.1261261261261262) internal successors, (125), 111 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2022-10-16 14:29:11,048 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 55 [2022-10-16 14:29:11,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:11,049 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2022-10-16 14:29:11,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 3.3958333333333335) internal successors, (163), 49 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2022-10-16 14:29:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 14:29:11,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:11,053 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 1, 1, 1] [2022-10-16 14:29:11,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:11,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:11,269 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:29:11,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:11,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1633033908, now seen corresponding path program 4 times [2022-10-16 14:29:11,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:11,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399748248] [2022-10-16 14:29:11,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:12,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:12,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399748248] [2022-10-16 14:29:12,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399748248] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:12,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50087664] [2022-10-16 14:29:12,471 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:29:12,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:12,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:12,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:12,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:29:12,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:29:12,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:12,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 14:29:12,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:14,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:15,877 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:15,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50087664] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:15,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:15,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32, 32] total 95 [2022-10-16 14:29:15,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605198346] [2022-10-16 14:29:15,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:15,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-16 14:29:15,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:15,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-16 14:29:15,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1772, Invalid=7348, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 14:29:15,886 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand has 96 states, 95 states have (on average 3.4842105263157896) internal successors, (331), 96 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:23,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:23,704 INFO L93 Difference]: Finished difference Result 273 states and 317 transitions. [2022-10-16 14:29:23,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-16 14:29:23,705 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 3.4842105263157896) internal successors, (331), 96 states have internal predecessors, (331), 0 states have call successors, (0), 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 111 [2022-10-16 14:29:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:23,708 INFO L225 Difference]: With dead ends: 273 [2022-10-16 14:29:23,709 INFO L226 Difference]: Without dead ends: 272 [2022-10-16 14:29:23,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11625 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=9011, Invalid=23931, Unknown=0, NotChecked=0, Total=32942 [2022-10-16 14:29:23,719 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1526 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:23,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 679 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 14:29:23,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-10-16 14:29:23,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 224. [2022-10-16 14:29:23,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 1.1345291479820627) internal successors, (253), 223 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 253 transitions. [2022-10-16 14:29:23,744 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 253 transitions. Word has length 111 [2022-10-16 14:29:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:23,745 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 253 transitions. [2022-10-16 14:29:23,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 3.4842105263157896) internal successors, (331), 96 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 253 transitions. [2022-10-16 14:29:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-10-16 14:29:23,750 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:23,750 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 1, 1, 1] [2022-10-16 14:29:23,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 14:29:23,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:23,958 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:29:23,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2074231732, now seen corresponding path program 5 times [2022-10-16 14:29:23,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:23,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042721194] [2022-10-16 14:29:23,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:23,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 0 proven. 3379 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:28,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:28,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042721194] [2022-10-16 14:29:28,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042721194] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:28,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666100932] [2022-10-16 14:29:28,391 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:29:28,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:28,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:28,395 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:28,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:29:28,562 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-10-16 14:29:28,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:28,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 65 conjunts are in the unsatisfiable core [2022-10-16 14:29:28,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 0 proven. 3379 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 0 proven. 3379 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:42,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666100932] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:42,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:42,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 64, 64] total 192 [2022-10-16 14:29:42,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973722337] [2022-10-16 14:29:42,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:42,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-10-16 14:29:42,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:42,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-10-16 14:29:42,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6266, Invalid=30790, Unknown=0, NotChecked=0, Total=37056 [2022-10-16 14:29:42,389 INFO L87 Difference]: Start difference. First operand 224 states and 253 transitions. Second operand has 193 states, 192 states have (on average 3.4739583333333335) internal successors, (667), 193 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:24,227 INFO L93 Difference]: Finished difference Result 545 states and 637 transitions. [2022-10-16 14:30:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-10-16 14:30:24,228 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 192 states have (on average 3.4739583333333335) internal successors, (667), 193 states have internal predecessors, (667), 0 states have call successors, (0), 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 223 [2022-10-16 14:30:24,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:24,233 INFO L225 Difference]: With dead ends: 545 [2022-10-16 14:30:24,233 INFO L226 Difference]: Without dead ends: 544 [2022-10-16 14:30:24,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 373 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49353 ImplicationChecksByTransitivity, 50.6s TimeCoverageRelationStatistics Valid=36069, Invalid=104181, Unknown=0, NotChecked=0, Total=140250 [2022-10-16 14:30:24,249 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 4872 mSDsluCounter, 4526 mSDsCounter, 0 mSdLazyCounter, 8149 mSolverCounterSat, 1523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 4619 SdHoareTripleChecker+Invalid, 9672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1523 IncrementalHoareTripleChecker+Valid, 8149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:24,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4872 Valid, 4619 Invalid, 9672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1523 Valid, 8149 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-10-16 14:30:24,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-10-16 14:30:24,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 448. [2022-10-16 14:30:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 1.138702460850112) internal successors, (509), 447 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 509 transitions. [2022-10-16 14:30:24,288 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 509 transitions. Word has length 223 [2022-10-16 14:30:24,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:24,289 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 509 transitions. [2022-10-16 14:30:24,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 192 states have (on average 3.4739583333333335) internal successors, (667), 193 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 509 transitions. [2022-10-16 14:30:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-10-16 14:30:24,308 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:24,311 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 1, 1, 1] [2022-10-16 14:30:24,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:24,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:24,513 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:24,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:24,514 INFO L85 PathProgramCache]: Analyzing trace with hash 185109940, now seen corresponding path program 6 times [2022-10-16 14:30:24,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:24,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538683671] [2022-10-16 14:30:24,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:24,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 0 proven. 13923 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:39,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:39,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538683671] [2022-10-16 14:30:39,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538683671] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:39,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159696429] [2022-10-16 14:30:39,304 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:30:39,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:39,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:39,305 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:39,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:30:39,600 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2022-10-16 14:30:39,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:39,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 130 conjunts are in the unsatisfiable core [2022-10-16 14:30:39,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 0 proven. 13923 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:56,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:31:21,841 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 0 proven. 13923 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:21,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159696429] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:31:21,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:31:21,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 385 [2022-10-16 14:31:21,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084166526] [2022-10-16 14:31:21,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:31:21,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-10-16 14:31:21,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:31:21,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-10-16 14:31:21,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22698, Invalid=125912, Unknown=0, NotChecked=0, Total=148610 [2022-10-16 14:31:21,864 INFO L87 Difference]: Start difference. First operand 448 states and 509 transitions. Second operand has 386 states, 385 states have (on average 3.477922077922078) internal successors, (1339), 386 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)