/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_copy5_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:10:35,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:10:35,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:10:35,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:10:35,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:10:35,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:10:35,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:10:35,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:10:35,882 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:10:35,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:10:35,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:10:35,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:10:35,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:10:35,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:10:35,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:10:35,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:10:35,888 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:10:35,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:10:35,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:10:35,889 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:10:35,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:10:35,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:10:35,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:10:35,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:10:35,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:10:35,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:10:35,891 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:10:35,895 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:10:35,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:10:35,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:10:35,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:10:35,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:10:35,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:10:35,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:10:35,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:10:35,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:10:35,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:10:35,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:10:35,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:10:35,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:10:35,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:10:35,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:10:36,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:10:36,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:10:36,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:10:36,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:10:36,342 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:10:36,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy5_ground-1.i [2022-10-16 10:10:36,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec6a5c5e/9a9fd41199b34e8e9432af80578ae85f/FLAGd1027f0da [2022-10-16 10:10:37,019 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:10:37,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy5_ground-1.i [2022-10-16 10:10:37,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec6a5c5e/9a9fd41199b34e8e9432af80578ae85f/FLAGd1027f0da [2022-10-16 10:10:37,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec6a5c5e/9a9fd41199b34e8e9432af80578ae85f [2022-10-16 10:10:37,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:10:37,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:10:37,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:10:37,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:10:37,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:10:37,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c633b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37, skipping insertion in model container [2022-10-16 10:10:37,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:10:37,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:10:37,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy5_ground-1.i[816,829] [2022-10-16 10:10:37,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:10:37,750 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:10:37,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy5_ground-1.i[816,829] [2022-10-16 10:10:37,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:10:37,791 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:10:37,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37 WrapperNode [2022-10-16 10:10:37,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:10:37,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:10:37,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:10:37,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:10:37,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,839 INFO L138 Inliner]: procedures = 16, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 142 [2022-10-16 10:10:37,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:10:37,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:10:37,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:10:37,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:10:37,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,870 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:10:37,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:10:37,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:10:37,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:10:37,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (1/1) ... [2022-10-16 10:10:37,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:10:37,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:37,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:10:37,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:10:37,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:10:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:10:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:10:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:10:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:10:37,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:10:37,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:10:37,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:10:38,070 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:10:38,073 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:10:38,421 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:10:38,440 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:10:38,441 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-10-16 10:10:38,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:10:38 BoogieIcfgContainer [2022-10-16 10:10:38,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:10:38,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:10:38,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:10:38,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:10:38,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:10:37" (1/3) ... [2022-10-16 10:10:38,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df9b711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:10:38, skipping insertion in model container [2022-10-16 10:10:38,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:10:37" (2/3) ... [2022-10-16 10:10:38,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df9b711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:10:38, skipping insertion in model container [2022-10-16 10:10:38,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:10:38" (3/3) ... [2022-10-16 10:10:38,472 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy5_ground-1.i [2022-10-16 10:10:38,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:10:38,552 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 10:10:38,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:10:38,663 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;@5696629e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:10:38,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 10:10:38,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 56 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:38,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:10:38,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:38,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:10:38,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:38,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:38,692 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:10:38,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:38,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796322213] [2022-10-16 10:10:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:10:39,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:39,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796322213] [2022-10-16 10:10:39,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796322213] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:39,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:10:39,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:10:39,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996170885] [2022-10-16 10:10:39,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:39,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:39,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:39,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:39,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:10:39,192 INFO L87 Difference]: Start difference. First operand has 57 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 56 states have internal predecessors, (71), 0 states have call successors, (0), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:39,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:39,257 INFO L93 Difference]: Finished difference Result 112 states and 140 transitions. [2022-10-16 10:10:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:39,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 10:10:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:39,269 INFO L225 Difference]: With dead ends: 112 [2022-10-16 10:10:39,270 INFO L226 Difference]: Without dead ends: 56 [2022-10-16 10:10:39,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:10:39,278 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 3 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:39,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 173 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:10:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-16 10:10:39,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-10-16 10:10:39,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 55 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2022-10-16 10:10:39,336 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 5 [2022-10-16 10:10:39,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:39,337 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2022-10-16 10:10:39,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:39,339 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2022-10-16 10:10:39,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:10:39,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:39,340 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:10:39,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:10:39,341 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:39,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:10:39,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:39,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865136300] [2022-10-16 10:10:39,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:39,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:10:39,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:39,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865136300] [2022-10-16 10:10:39,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865136300] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:39,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:10:39,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:10:39,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172085938] [2022-10-16 10:10:39,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:39,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:39,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:39,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:39,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:10:39,519 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:39,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:39,571 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2022-10-16 10:10:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:39,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:10:39,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:39,573 INFO L225 Difference]: With dead ends: 56 [2022-10-16 10:10:39,573 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 10:10:39,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:10:39,577 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 5 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:39,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 153 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:10:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 10:10:39,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-10-16 10:10:39,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 54 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 10:10:39,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2022-10-16 10:10:39,596 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 9 [2022-10-16 10:10:39,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:39,602 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2022-10-16 10:10:39,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:39,602 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2022-10-16 10:10:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:10:39,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:39,603 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:10:39,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:10:39,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:39,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:39,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:10:39,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:39,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435703997] [2022-10-16 10:10:39,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:39,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:39,777 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 10:10:39,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:39,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435703997] [2022-10-16 10:10:39,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435703997] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:39,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286778540] [2022-10-16 10:10:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:39,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:39,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:39,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:39,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:10:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:39,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:10:39,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:39,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:10:39,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:10:39,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286778540] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:39,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:10:39,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 10:10:39,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030228420] [2022-10-16 10:10:39,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:39,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:39,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:39,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:10:39,962 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:40,027 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2022-10-16 10:10:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:40,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:10:40,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:40,032 INFO L225 Difference]: With dead ends: 55 [2022-10-16 10:10:40,032 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 10:10:40,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:10:40,036 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 52 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:40,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 102 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:10:40,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 10:10:40,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2022-10-16 10:10:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 50 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-10-16 10:10:40,052 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 10 [2022-10-16 10:10:40,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:40,052 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-10-16 10:10:40,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:40,053 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-10-16 10:10:40,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:10:40,054 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:40,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:40,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:10:40,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:40,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2022-10-16 10:10:40,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:40,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968168237] [2022-10-16 10:10:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:40,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:10:40,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:40,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968168237] [2022-10-16 10:10:40,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968168237] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:40,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875921586] [2022-10-16 10:10:40,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:40,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:40,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:40,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:40,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:10:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:40,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:10:40,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:10:40,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:10:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:10:40,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875921586] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:10:40,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:10:40,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:10:40,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589932419] [2022-10-16 10:10:40,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:10:40,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:10:40,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:40,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:10:40,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:10:40,561 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:40,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:40,617 INFO L93 Difference]: Finished difference Result 103 states and 116 transitions. [2022-10-16 10:10:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:10:40,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:10:40,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:40,619 INFO L225 Difference]: With dead ends: 103 [2022-10-16 10:10:40,619 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 10:10:40,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:10:40,621 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 15 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:40,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 255 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:10:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 10:10:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 10:10:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-10-16 10:10:40,632 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 11 [2022-10-16 10:10:40,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:40,632 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-10-16 10:10:40,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:40,633 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-10-16 10:10:40,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 10:10:40,634 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:40,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:40,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:10:40,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:10:40,849 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:40,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:40,851 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2022-10-16 10:10:40,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:40,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343210234] [2022-10-16 10:10:40,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:40,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:10:40,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:40,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343210234] [2022-10-16 10:10:40,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343210234] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:40,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:10:40,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:10:40,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259549132] [2022-10-16 10:10:40,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:40,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:40,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:40,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:40,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:10:40,943 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:41,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:41,018 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2022-10-16 10:10:41,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:41,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 10:10:41,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:41,020 INFO L225 Difference]: With dead ends: 126 [2022-10-16 10:10:41,021 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 10:10:41,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:10:41,023 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 23 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:41,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 115 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:10:41,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 10:10:41,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 67. [2022-10-16 10:10:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 66 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2022-10-16 10:10:41,034 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 19 [2022-10-16 10:10:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:41,035 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2022-10-16 10:10:41,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2022-10-16 10:10:41,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:10:41,036 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:41,036 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:41,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:10:41,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:41,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:41,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2022-10-16 10:10:41,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:41,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721888651] [2022-10-16 10:10:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:41,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:10:41,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:41,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721888651] [2022-10-16 10:10:41,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721888651] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:41,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:10:41,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:10:41,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332282517] [2022-10-16 10:10:41,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:41,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:41,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:41,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:41,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:10:41,114 INFO L87 Difference]: Start difference. First operand 67 states and 73 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 10:10:41,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:41,181 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-10-16 10:10:41,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:41,183 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 23 [2022-10-16 10:10:41,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:41,185 INFO L225 Difference]: With dead ends: 67 [2022-10-16 10:10:41,185 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 10:10:41,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:10:41,188 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 25 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:41,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 98 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:10:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 10:10:41,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-16 10:10:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 55 states have (on average 1.309090909090909) internal successors, (72), 65 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2022-10-16 10:10:41,207 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 23 [2022-10-16 10:10:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:41,207 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2022-10-16 10:10:41,208 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 10:10:41,208 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2022-10-16 10:10:41,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:10:41,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:41,210 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:41,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:10:41,210 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:41,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:41,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1704330462, now seen corresponding path program 1 times [2022-10-16 10:10:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:41,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025258531] [2022-10-16 10:10:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:41,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:10:41,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:41,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025258531] [2022-10-16 10:10:41,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025258531] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:41,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928829436] [2022-10-16 10:10:41,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:41,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:41,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:41,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:41,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:10:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:41,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:10:41,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:41,555 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:10:41,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:10:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:10:41,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928829436] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:10:41,650 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:10:41,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 10:10:41,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370126547] [2022-10-16 10:10:41,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:10:41,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:10:41,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:41,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:10:41,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:10:41,652 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:41,781 INFO L93 Difference]: Finished difference Result 133 states and 148 transitions. [2022-10-16 10:10:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:10:41,781 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:10:41,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:41,782 INFO L225 Difference]: With dead ends: 133 [2022-10-16 10:10:41,782 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 10:10:41,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:10:41,784 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 41 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:41,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 300 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:10:41,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 10:10:41,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-10-16 10:10:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 81 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:41,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2022-10-16 10:10:41,795 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 24 [2022-10-16 10:10:41,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:41,796 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2022-10-16 10:10:41,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:41,796 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2022-10-16 10:10:41,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 10:10:41,797 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:41,798 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:41,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:10:42,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:42,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:42,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1811331278, now seen corresponding path program 2 times [2022-10-16 10:10:42,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:42,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205101195] [2022-10-16 10:10:42,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:42,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:10:42,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:42,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205101195] [2022-10-16 10:10:42,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205101195] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:42,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142829117] [2022-10-16 10:10:42,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:10:42,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:42,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:42,409 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:42,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:10:42,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:10:42,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:10:42,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:10:42,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:42,590 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:10:42,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:10:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:10:42,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142829117] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:10:42,875 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:10:42,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 10:10:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803898583] [2022-10-16 10:10:42,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:10:42,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:10:42,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:42,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:10:42,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:10:42,879 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:43,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:43,195 INFO L93 Difference]: Finished difference Result 165 states and 184 transitions. [2022-10-16 10:10:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:10:43,196 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 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 40 [2022-10-16 10:10:43,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:43,197 INFO L225 Difference]: With dead ends: 165 [2022-10-16 10:10:43,197 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 10:10:43,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 10:10:43,200 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 83 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:43,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 448 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:10:43,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 10:10:43,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-10-16 10:10:43,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 113 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:43,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 120 transitions. [2022-10-16 10:10:43,213 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 120 transitions. Word has length 40 [2022-10-16 10:10:43,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:43,213 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 120 transitions. [2022-10-16 10:10:43,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:43,214 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 120 transitions. [2022-10-16 10:10:43,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 10:10:43,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:43,216 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:43,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:10:43,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:43,430 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:43,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:43,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 3 times [2022-10-16 10:10:43,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:43,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726885779] [2022-10-16 10:10:43,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:43,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:10:44,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:44,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726885779] [2022-10-16 10:10:44,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726885779] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:44,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100278875] [2022-10-16 10:10:44,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:10:44,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:44,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:44,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:44,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:10:44,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:10:44,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:10:44,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:10:44,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:10:44,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:10:44,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100278875] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:44,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:10:44,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-10-16 10:10:44,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232446815] [2022-10-16 10:10:44,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:44,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:44,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:44,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:44,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 10:10:44,606 INFO L87 Difference]: Start difference. First operand 114 states and 120 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:44,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:44,669 INFO L93 Difference]: Finished difference Result 114 states and 120 transitions. [2022-10-16 10:10:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:44,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 72 [2022-10-16 10:10:44,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:44,672 INFO L225 Difference]: With dead ends: 114 [2022-10-16 10:10:44,673 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 10:10:44,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:10:44,676 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 36 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:44,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 79 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:10:44,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 10:10:44,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110. [2022-10-16 10:10:44,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 100 states have (on average 1.16) internal successors, (116), 109 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:44,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 116 transitions. [2022-10-16 10:10:44,703 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 116 transitions. Word has length 72 [2022-10-16 10:10:44,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:44,705 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 116 transitions. [2022-10-16 10:10:44,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:44,705 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 116 transitions. [2022-10-16 10:10:44,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 10:10:44,710 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:44,710 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:44,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:10:44,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:44,926 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:44,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:44,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1409160564, now seen corresponding path program 1 times [2022-10-16 10:10:44,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:44,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361977008] [2022-10-16 10:10:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:44,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:45,073 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:10:45,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:45,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361977008] [2022-10-16 10:10:45,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361977008] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:45,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924499605] [2022-10-16 10:10:45,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:45,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:45,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:45,075 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:45,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:10:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:45,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:10:45,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:10:45,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:10:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:10:46,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924499605] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:10:46,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:10:46,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-10-16 10:10:46,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839368575] [2022-10-16 10:10:46,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:10:46,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:10:46,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:46,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:10:46,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:10:46,795 INFO L87 Difference]: Start difference. First operand 110 states and 116 transitions. Second operand has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:47,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:47,909 INFO L93 Difference]: Finished difference Result 248 states and 276 transitions. [2022-10-16 10:10:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-16 10:10:47,910 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 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 73 [2022-10-16 10:10:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:47,913 INFO L225 Difference]: With dead ends: 248 [2022-10-16 10:10:47,913 INFO L226 Difference]: Without dead ends: 201 [2022-10-16 10:10:47,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 10:10:47,924 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 225 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:47,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 491 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:10:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-16 10:10:47,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 178. [2022-10-16 10:10:47,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 168 states have (on average 1.0952380952380953) internal successors, (184), 177 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 184 transitions. [2022-10-16 10:10:47,947 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 184 transitions. Word has length 73 [2022-10-16 10:10:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:47,947 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 184 transitions. [2022-10-16 10:10:47,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 184 transitions. [2022-10-16 10:10:47,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-16 10:10:47,958 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:47,958 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:47,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:10:48,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:48,174 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:48,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:48,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1254469680, now seen corresponding path program 2 times [2022-10-16 10:10:48,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:48,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416389906] [2022-10-16 10:10:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:48,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-16 10:10:48,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:48,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416389906] [2022-10-16 10:10:48,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416389906] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:48,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:10:48,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:10:48,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183650145] [2022-10-16 10:10:48,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:48,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:48,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:48,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:48,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:10:48,393 INFO L87 Difference]: Start difference. First operand 178 states and 184 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:48,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:48,453 INFO L93 Difference]: Finished difference Result 198 states and 204 transitions. [2022-10-16 10:10:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:48,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-10-16 10:10:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:48,455 INFO L225 Difference]: With dead ends: 198 [2022-10-16 10:10:48,455 INFO L226 Difference]: Without dead ends: 196 [2022-10-16 10:10:48,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:10:48,457 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 21 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:48,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 109 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:10:48,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-10-16 10:10:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 181. [2022-10-16 10:10:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 171 states have (on average 1.0935672514619883) internal successors, (187), 180 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 187 transitions. [2022-10-16 10:10:48,472 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 187 transitions. Word has length 141 [2022-10-16 10:10:48,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:48,473 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 187 transitions. [2022-10-16 10:10:48,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:48,474 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 187 transitions. [2022-10-16 10:10:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 10:10:48,476 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:48,476 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:48,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:10:48,476 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:48,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:48,477 INFO L85 PathProgramCache]: Analyzing trace with hash 322471340, now seen corresponding path program 1 times [2022-10-16 10:10:48,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:48,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825621249] [2022-10-16 10:10:48,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:48,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-16 10:10:48,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:48,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825621249] [2022-10-16 10:10:48,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825621249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:10:48,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:10:48,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:10:48,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328789685] [2022-10-16 10:10:48,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:10:48,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:10:48,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:48,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:10:48,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:10:48,662 INFO L87 Difference]: Start difference. First operand 181 states and 187 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:48,709 INFO L93 Difference]: Finished difference Result 181 states and 187 transitions. [2022-10-16 10:10:48,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:10:48,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-10-16 10:10:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:48,711 INFO L225 Difference]: With dead ends: 181 [2022-10-16 10:10:48,711 INFO L226 Difference]: Without dead ends: 180 [2022-10-16 10:10:48,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:10:48,712 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 23 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:48,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 94 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:10:48,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-10-16 10:10:48,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-10-16 10:10:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 171 states have (on average 1.087719298245614) internal successors, (186), 179 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 186 transitions. [2022-10-16 10:10:48,722 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 186 transitions. Word has length 145 [2022-10-16 10:10:48,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:48,729 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 186 transitions. [2022-10-16 10:10:48,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:48,729 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 186 transitions. [2022-10-16 10:10:48,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-16 10:10:48,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:48,731 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:48,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 10:10:48,732 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:48,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:48,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1406677030, now seen corresponding path program 1 times [2022-10-16 10:10:48,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:48,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461913219] [2022-10-16 10:10:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:48,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:10:51,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:10:51,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461913219] [2022-10-16 10:10:51,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461913219] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:10:51,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858413477] [2022-10-16 10:10:51,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:51,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:51,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:10:51,933 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:10:51,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:10:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:10:52,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:10:52,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:10:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:10:52,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:10:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:10:56,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858413477] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:10:56,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:10:56,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-16 10:10:56,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523168203] [2022-10-16 10:10:56,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:10:56,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 10:10:56,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:10:56,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 10:10:56,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 10:10:56,016 INFO L87 Difference]: Start difference. First operand 180 states and 186 transitions. Second operand has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:59,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:10:59,196 INFO L93 Difference]: Finished difference Result 361 states and 404 transitions. [2022-10-16 10:10:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-16 10:10:59,197 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 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 146 [2022-10-16 10:10:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:10:59,199 INFO L225 Difference]: With dead ends: 361 [2022-10-16 10:10:59,199 INFO L226 Difference]: Without dead ends: 308 [2022-10-16 10:10:59,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 10:10:59,211 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 517 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:10:59,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 523 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:10:59,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-10-16 10:10:59,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2022-10-16 10:10:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 299 states have (on average 1.0501672240802675) internal successors, (314), 307 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 314 transitions. [2022-10-16 10:10:59,225 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 314 transitions. Word has length 146 [2022-10-16 10:10:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:10:59,225 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 314 transitions. [2022-10-16 10:10:59,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:10:59,226 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 314 transitions. [2022-10-16 10:10:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-16 10:10:59,254 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:10:59,255 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:10:59,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-16 10:10:59,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:10:59,456 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:10:59,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:10:59,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1212059482, now seen corresponding path program 2 times [2022-10-16 10:10:59,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:10:59,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358310060] [2022-10-16 10:10:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:10:59,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:10:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:09,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:09,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:09,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358310060] [2022-10-16 10:11:09,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358310060] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:09,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531761730] [2022-10-16 10:11:09,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:11:09,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:09,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:09,984 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:09,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:11:10,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:11:10,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:11:10,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 10:11:10,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:10,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:10,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:11:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:25,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531761730] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:11:25,134 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:11:25,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-10-16 10:11:25,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695539032] [2022-10-16 10:11:25,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:11:25,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-10-16 10:11:25,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-10-16 10:11:25,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-10-16 10:11:25,152 INFO L87 Difference]: Start difference. First operand 308 states and 314 transitions. Second operand has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:11:38,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:38,740 INFO L93 Difference]: Finished difference Result 617 states and 692 transitions. [2022-10-16 10:11:38,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-10-16 10:11:38,741 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 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 274 [2022-10-16 10:11:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:38,745 INFO L225 Difference]: With dead ends: 617 [2022-10-16 10:11:38,745 INFO L226 Difference]: Without dead ends: 564 [2022-10-16 10:11:38,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-10-16 10:11:38,756 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 1227 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:11:38,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 667 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:11:38,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-10-16 10:11:38,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2022-10-16 10:11:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 555 states have (on average 1.027027027027027) internal successors, (570), 563 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:11:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 570 transitions. [2022-10-16 10:11:38,777 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 570 transitions. Word has length 274 [2022-10-16 10:11:38,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:38,777 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 570 transitions. [2022-10-16 10:11:38,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:11:38,778 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 570 transitions. [2022-10-16 10:11:38,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-10-16 10:11:38,789 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:38,789 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:38,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:11:39,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:11:39,004 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:11:39,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:39,005 INFO L85 PathProgramCache]: Analyzing trace with hash 570159526, now seen corresponding path program 3 times [2022-10-16 10:11:39,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:39,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028915371] [2022-10-16 10:11:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:39,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 32141 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:12:17,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:17,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028915371] [2022-10-16 10:12:17,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028915371] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:17,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841683340] [2022-10-16 10:12:17,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:12:17,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:17,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:17,773 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:17,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:12:17,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:12:17,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:12:17,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:12:17,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 32141 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-10-16 10:12:18,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:12:18,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841683340] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:18,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:12:18,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [257] total 259 [2022-10-16 10:12:18,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802929272] [2022-10-16 10:12:18,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:18,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:18,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:18,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:18,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16644, Invalid=50178, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 10:12:18,251 INFO L87 Difference]: Start difference. First operand 564 states and 570 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:18,437 INFO L93 Difference]: Finished difference Result 564 states and 570 transitions. [2022-10-16 10:12:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:18,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 530 [2022-10-16 10:12:18,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:18,442 INFO L225 Difference]: With dead ends: 564 [2022-10-16 10:12:18,442 INFO L226 Difference]: Without dead ends: 563 [2022-10-16 10:12:18,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16508 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=16648, Invalid=50692, Unknown=0, NotChecked=0, Total=67340 [2022-10-16 10:12:18,446 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 34 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:18,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 75 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:12:18,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-10-16 10:12:18,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 560. [2022-10-16 10:12:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 552 states have (on average 1.0253623188405796) internal successors, (566), 559 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 566 transitions. [2022-10-16 10:12:18,472 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 566 transitions. Word has length 530 [2022-10-16 10:12:18,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:18,473 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 566 transitions. [2022-10-16 10:12:18,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:18,474 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 566 transitions. [2022-10-16 10:12:18,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-10-16 10:12:18,486 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:18,486 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:18,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:18,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:12:18,700 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:12:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:18,701 INFO L85 PathProgramCache]: Analyzing trace with hash 493481394, now seen corresponding path program 1 times [2022-10-16 10:12:18,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:18,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237431334] [2022-10-16 10:12:18,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:18,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-10-16 10:12:19,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237431334] [2022-10-16 10:12:19,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237431334] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937307365] [2022-10-16 10:12:19,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:19,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:19,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:19,138 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:19,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:12:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:19,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 256 conjunts are in the unsatisfiable core [2022-10-16 10:12:19,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:12:41,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:13:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:13:40,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937307365] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:13:40,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:13:40,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 257, 257] total 515 [2022-10-16 10:13:40,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379730030] [2022-10-16 10:13:40,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:13:40,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 515 states [2022-10-16 10:13:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:13:40,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 515 interpolants. [2022-10-16 10:13:40,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65799, Invalid=198911, Unknown=0, NotChecked=0, Total=264710 [2022-10-16 10:13:40,736 INFO L87 Difference]: Start difference. First operand 560 states and 566 transitions. Second operand has 515 states, 515 states have (on average 2.0485436893203883) internal successors, (1055), 515 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)