/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/loops-crafted-1/nested_delay_notd2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:45:39,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:45:39,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:45:39,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:45:39,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:45:39,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:45:39,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:45:39,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:45:39,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:45:39,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:45:39,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:45:39,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:45:39,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:45:39,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:45:39,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:45:39,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:45:39,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:45:39,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:45:39,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:45:39,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:45:39,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:45:39,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:45:39,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:45:39,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:45:39,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:45:39,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:45:39,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:45:39,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:45:39,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:45:39,985 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:45:39,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:45:39,986 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:45:39,986 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:45:39,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:45:39,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:45:39,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:45:39,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:45:39,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:45:39,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:45:39,987 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:45:39,988 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:45:39,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:45:39,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:45:39,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:45:39,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:45:39,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:45:39,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:45:39,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:45:39,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:45:39,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:45:39,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:45:39,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:45:39,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:45:39,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:45:39,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:45:40,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:45:40,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:45:40,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:45:40,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:45:40,376 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:45:40,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/nested_delay_notd2.c [2022-10-16 14:45:40,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19798453/e8815e4594044b62acc7abe24e0a7d06/FLAG6f073447f [2022-10-16 14:45:41,156 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:45:41,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/nested_delay_notd2.c [2022-10-16 14:45:41,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19798453/e8815e4594044b62acc7abe24e0a7d06/FLAG6f073447f [2022-10-16 14:45:41,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19798453/e8815e4594044b62acc7abe24e0a7d06 [2022-10-16 14:45:41,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:45:41,512 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:45:41,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:45:41,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:45:41,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:45:41,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d5efc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41, skipping insertion in model container [2022-10-16 14:45:41,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:45:41,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:45:41,715 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/loops-crafted-1/nested_delay_notd2.c[468,481] [2022-10-16 14:45:41,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:45:41,744 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:45:41,759 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/loops-crafted-1/nested_delay_notd2.c[468,481] [2022-10-16 14:45:41,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:45:41,783 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:45:41,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41 WrapperNode [2022-10-16 14:45:41,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:45:41,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:45:41,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:45:41,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:45:41,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,828 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2022-10-16 14:45:41,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:45:41,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:45:41,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:45:41,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:45:41,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:45:41,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:45:41,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:45:41,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:45:41,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (1/1) ... [2022-10-16 14:45:41,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:45:41,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:41,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:45:41,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:45:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:45:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:45:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:45:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:45:42,065 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:45:42,068 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:45:42,312 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:45:42,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:45:42,329 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:45:42,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:45:42 BoogieIcfgContainer [2022-10-16 14:45:42,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:45:42,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:45:42,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:45:42,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:45:42,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:45:41" (1/3) ... [2022-10-16 14:45:42,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f24cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:45:42, skipping insertion in model container [2022-10-16 14:45:42,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:41" (2/3) ... [2022-10-16 14:45:42,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f24cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:45:42, skipping insertion in model container [2022-10-16 14:45:42,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:45:42" (3/3) ... [2022-10-16 14:45:42,379 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_delay_notd2.c [2022-10-16 14:45:42,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:45:42,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 14:45:42,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:45:42,556 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;@63c7f63e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:45:42,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 14:45:42,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 53 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 14:45:42,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:45:42,583 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:42,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:42,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:42,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:42,591 INFO L85 PathProgramCache]: Analyzing trace with hash -587820626, now seen corresponding path program 1 times [2022-10-16 14:45:42,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:42,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178013567] [2022-10-16 14:45:42,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:42,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:42,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:42,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178013567] [2022-10-16 14:45:42,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178013567] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:42,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:42,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:45:42,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197872296] [2022-10-16 14:45:42,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:42,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 14:45:42,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:42,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 14:45:42,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:45:42,821 INFO L87 Difference]: Start difference. First operand has 54 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 53 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 14:45:42,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:42,844 INFO L93 Difference]: Finished difference Result 101 states and 123 transitions. [2022-10-16 14:45:42,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 14:45:42,846 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 14:45:42,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:42,856 INFO L225 Difference]: With dead ends: 101 [2022-10-16 14:45:42,856 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 14:45:42,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:45:42,866 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:42,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:42,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 14:45:42,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-10-16 14:45:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.696969696969697) internal successors, (56), 48 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2022-10-16 14:45:42,914 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 9 [2022-10-16 14:45:42,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:42,914 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2022-10-16 14:45:42,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 14:45:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2022-10-16 14:45:42,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:45:42,916 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:42,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:42,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:45:42,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:42,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:42,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1186739871, now seen corresponding path program 1 times [2022-10-16 14:45:42,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:42,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647976461] [2022-10-16 14:45:42,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:42,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:43,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:43,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647976461] [2022-10-16 14:45:43,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647976461] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:43,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:43,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:45:43,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207763127] [2022-10-16 14:45:43,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:43,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:43,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:43,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:43,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:43,110 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 14:45:43,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:43,178 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2022-10-16 14:45:43,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:43,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 14:45:43,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:43,182 INFO L225 Difference]: With dead ends: 102 [2022-10-16 14:45:43,183 INFO L226 Difference]: Without dead ends: 57 [2022-10-16 14:45:43,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:43,187 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 68 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:43,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 84 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:43,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-16 14:45:43,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2022-10-16 14:45:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 49 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 14:45:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-10-16 14:45:43,211 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 9 [2022-10-16 14:45:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:43,212 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-10-16 14:45:43,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 14:45:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-10-16 14:45:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:45:43,213 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:43,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:43,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:45:43,215 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:43,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:43,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1186787569, now seen corresponding path program 1 times [2022-10-16 14:45:43,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:43,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460278963] [2022-10-16 14:45:43,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:43,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:43,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:43,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:43,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460278963] [2022-10-16 14:45:43,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460278963] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:43,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:43,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:45:43,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858981411] [2022-10-16 14:45:43,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:43,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:43,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:43,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:43,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:43,357 INFO L87 Difference]: Start difference. First operand 50 states and 57 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 14:45:43,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:43,413 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2022-10-16 14:45:43,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:43,414 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 14:45:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:43,416 INFO L225 Difference]: With dead ends: 57 [2022-10-16 14:45:43,417 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 14:45:43,417 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 14:45:43,419 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 4 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:43,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:43,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 14:45:43,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2022-10-16 14:45:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 38 states have (on average 1.631578947368421) internal successors, (62), 53 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 14:45:43,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-10-16 14:45:43,440 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 9 [2022-10-16 14:45:43,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:43,440 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-10-16 14:45:43,440 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 14:45:43,441 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-10-16 14:45:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:45:43,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:43,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:43,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:45:43,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:43,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:43,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1193098171, now seen corresponding path program 1 times [2022-10-16 14:45:43,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:43,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140728559] [2022-10-16 14:45:43,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:43,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:43,561 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 14:45:43,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:43,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140728559] [2022-10-16 14:45:43,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140728559] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:43,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827707993] [2022-10-16 14:45:43,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:43,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:43,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:43,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:43,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:45:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:43,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:45:43,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:43,695 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 14:45:43,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:43,733 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 14:45:43,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827707993] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:43,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:43,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 14:45:43,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60265545] [2022-10-16 14:45:43,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:43,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:45:43,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:45:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:45:43,741 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:43,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:43,961 INFO L93 Difference]: Finished difference Result 220 states and 257 transitions. [2022-10-16 14:45:43,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:45:43,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 14:45:43,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:43,965 INFO L225 Difference]: With dead ends: 220 [2022-10-16 14:45:43,966 INFO L226 Difference]: Without dead ends: 170 [2022-10-16 14:45:43,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:45:43,972 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 188 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:43,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 250 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:45:43,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-16 14:45:44,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 121. [2022-10-16 14:45:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 105 states have (on average 1.6476190476190475) internal successors, (173), 120 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 173 transitions. [2022-10-16 14:45:44,007 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 173 transitions. Word has length 14 [2022-10-16 14:45:44,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:44,007 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 173 transitions. [2022-10-16 14:45:44,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:44,008 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 173 transitions. [2022-10-16 14:45:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:45:44,009 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:44,009 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:44,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:45:44,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:44,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:44,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:44,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1193050473, now seen corresponding path program 1 times [2022-10-16 14:45:44,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:44,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026823463] [2022-10-16 14:45:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:44,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:44,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026823463] [2022-10-16 14:45:44,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026823463] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:44,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367165514] [2022-10-16 14:45:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:44,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:44,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:44,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:44,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:45:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:44,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:45:44,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:44,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:44,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367165514] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:44,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:44,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:45:44,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396964706] [2022-10-16 14:45:44,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:44,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:45:44,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:44,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:45:44,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:45:44,474 INFO L87 Difference]: Start difference. First operand 121 states and 173 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:44,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:44,748 INFO L93 Difference]: Finished difference Result 426 states and 630 transitions. [2022-10-16 14:45:44,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:45:44,749 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 14:45:44,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:44,754 INFO L225 Difference]: With dead ends: 426 [2022-10-16 14:45:44,754 INFO L226 Difference]: Without dead ends: 425 [2022-10-16 14:45:44,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:45:44,757 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 255 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:44,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 322 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:45:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-10-16 14:45:44,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 163. [2022-10-16 14:45:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 147 states have (on average 1.6258503401360545) internal successors, (239), 162 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:44,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 239 transitions. [2022-10-16 14:45:44,790 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 239 transitions. Word has length 14 [2022-10-16 14:45:44,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:44,791 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 239 transitions. [2022-10-16 14:45:44,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2022-10-16 14:45:44,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:45:44,795 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:44,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:44,822 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 14:45:45,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:45,010 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:45,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:45,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2002444797, now seen corresponding path program 1 times [2022-10-16 14:45:45,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:45,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727303065] [2022-10-16 14:45:45,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:45,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:45:45,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:45,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727303065] [2022-10-16 14:45:45,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727303065] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:45,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:45,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:45:45,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033648727] [2022-10-16 14:45:45,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:45,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:45,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:45,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:45,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:45,073 INFO L87 Difference]: Start difference. First operand 163 states and 239 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:45,119 INFO L93 Difference]: Finished difference Result 393 states and 576 transitions. [2022-10-16 14:45:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:45:45,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 14:45:45,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:45,122 INFO L225 Difference]: With dead ends: 393 [2022-10-16 14:45:45,122 INFO L226 Difference]: Without dead ends: 234 [2022-10-16 14:45:45,126 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 14:45:45,132 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 23 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:45,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 186 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:45,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-10-16 14:45:45,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 211. [2022-10-16 14:45:45,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 195 states have (on average 1.5897435897435896) internal successors, (310), 210 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 310 transitions. [2022-10-16 14:45:45,171 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 310 transitions. Word has length 14 [2022-10-16 14:45:45,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:45,171 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 310 transitions. [2022-10-16 14:45:45,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 310 transitions. [2022-10-16 14:45:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:45:45,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:45,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:45,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:45:45,175 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:45,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1668668783, now seen corresponding path program 1 times [2022-10-16 14:45:45,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:45,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824402685] [2022-10-16 14:45:45,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:45,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:45:45,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:45,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824402685] [2022-10-16 14:45:45,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824402685] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:45,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:45,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:45:45,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299880969] [2022-10-16 14:45:45,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:45,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:45:45,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:45,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:45:45,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:45:45,267 INFO L87 Difference]: Start difference. First operand 211 states and 310 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:45,326 INFO L93 Difference]: Finished difference Result 373 states and 544 transitions. [2022-10-16 14:45:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:45:45,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 14:45:45,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:45,329 INFO L225 Difference]: With dead ends: 373 [2022-10-16 14:45:45,329 INFO L226 Difference]: Without dead ends: 369 [2022-10-16 14:45:45,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:45:45,333 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:45,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 94 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:45,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-10-16 14:45:45,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 365. [2022-10-16 14:45:45,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 349 states have (on average 1.518624641833811) internal successors, (530), 364 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 530 transitions. [2022-10-16 14:45:45,368 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 530 transitions. Word has length 15 [2022-10-16 14:45:45,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:45,368 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 530 transitions. [2022-10-16 14:45:45,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,369 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 530 transitions. [2022-10-16 14:45:45,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:45:45,371 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:45,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:45,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:45:45,372 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:45,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1668662441, now seen corresponding path program 1 times [2022-10-16 14:45:45,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:45,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898865971] [2022-10-16 14:45:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:45,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:45:45,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:45,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898865971] [2022-10-16 14:45:45,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898865971] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:45,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:45,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:45:45,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095657822] [2022-10-16 14:45:45,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:45,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:45:45,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:45,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:45:45,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:45:45,461 INFO L87 Difference]: Start difference. First operand 365 states and 530 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:45,509 INFO L93 Difference]: Finished difference Result 365 states and 530 transitions. [2022-10-16 14:45:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:45:45,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 14:45:45,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:45,512 INFO L225 Difference]: With dead ends: 365 [2022-10-16 14:45:45,512 INFO L226 Difference]: Without dead ends: 364 [2022-10-16 14:45:45,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:45:45,514 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 46 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 14:45:45,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 46 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:45,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-10-16 14:45:45,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2022-10-16 14:45:45,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 349 states have (on average 1.507163323782235) internal successors, (526), 363 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 14:45:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 526 transitions. [2022-10-16 14:45:45,549 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 526 transitions. Word has length 15 [2022-10-16 14:45:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:45,549 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 526 transitions. [2022-10-16 14:45:45,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,550 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 526 transitions. [2022-10-16 14:45:45,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:45:45,551 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:45,551 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:45,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:45:45,551 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:45,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1670141068, now seen corresponding path program 1 times [2022-10-16 14:45:45,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:45,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979659320] [2022-10-16 14:45:45,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:45,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:45,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:45,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979659320] [2022-10-16 14:45:45,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979659320] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:45,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48745111] [2022-10-16 14:45:45,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:45,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:45,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:45,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:45,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:45:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:45,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:45:45,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:45,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:45:45,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48745111] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:45,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:45:45,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:45:45,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421577822] [2022-10-16 14:45:45,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:45,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:45:45,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:45,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:45:45,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:45:45,762 INFO L87 Difference]: Start difference. First operand 364 states and 526 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:45,850 INFO L93 Difference]: Finished difference Result 365 states and 527 transitions. [2022-10-16 14:45:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:45:45,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 14:45:45,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:45,853 INFO L225 Difference]: With dead ends: 365 [2022-10-16 14:45:45,853 INFO L226 Difference]: Without dead ends: 364 [2022-10-16 14:45:45,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:45:45,861 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 93 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:45,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 129 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:45,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-10-16 14:45:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 363. [2022-10-16 14:45:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 349 states have (on average 1.4212034383954155) internal successors, (496), 362 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 496 transitions. [2022-10-16 14:45:45,918 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 496 transitions. Word has length 15 [2022-10-16 14:45:45,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:45,918 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 496 transitions. [2022-10-16 14:45:45,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 496 transitions. [2022-10-16 14:45:45,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:45:45,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:45,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:45,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:45:46,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:46,134 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:46,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1567902193, now seen corresponding path program 1 times [2022-10-16 14:45:46,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:46,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357638340] [2022-10-16 14:45:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:46,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:46,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:46,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:46,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357638340] [2022-10-16 14:45:46,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357638340] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:46,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:46,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:45:46,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243820267] [2022-10-16 14:45:46,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:46,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:46,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:46,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:46,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:46,183 INFO L87 Difference]: Start difference. First operand 363 states and 496 transitions. Second operand has 4 states, 4 states have (on average 4.25) 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 14:45:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:46,241 INFO L93 Difference]: Finished difference Result 721 states and 975 transitions. [2022-10-16 14:45:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:46,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) 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 17 [2022-10-16 14:45:46,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:46,244 INFO L225 Difference]: With dead ends: 721 [2022-10-16 14:45:46,244 INFO L226 Difference]: Without dead ends: 362 [2022-10-16 14:45:46,246 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 14:45:46,248 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 41 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:46,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 156 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:46,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-10-16 14:45:46,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 347. [2022-10-16 14:45:46,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 333 states have (on average 1.3933933933933933) internal successors, (464), 346 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 464 transitions. [2022-10-16 14:45:46,288 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 464 transitions. Word has length 17 [2022-10-16 14:45:46,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:46,288 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 464 transitions. [2022-10-16 14:45:46,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) 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 14:45:46,289 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 464 transitions. [2022-10-16 14:45:46,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:45:46,291 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:46,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:46,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:45:46,299 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:46,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:46,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2026000525, now seen corresponding path program 1 times [2022-10-16 14:45:46,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:46,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597595133] [2022-10-16 14:45:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:46,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:45:46,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:46,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597595133] [2022-10-16 14:45:46,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597595133] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:46,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:46,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:45:46,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104671132] [2022-10-16 14:45:46,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:46,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:45:46,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:46,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:45:46,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:45:46,349 INFO L87 Difference]: Start difference. First operand 347 states and 464 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 14:45:46,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:46,400 INFO L93 Difference]: Finished difference Result 450 states and 600 transitions. [2022-10-16 14:45:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:45:46,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 17 [2022-10-16 14:45:46,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:46,405 INFO L225 Difference]: With dead ends: 450 [2022-10-16 14:45:46,405 INFO L226 Difference]: Without dead ends: 446 [2022-10-16 14:45:46,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:45:46,406 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 11 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:46,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 92 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:46,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-10-16 14:45:46,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 444. [2022-10-16 14:45:46,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 430 states have (on average 1.372093023255814) internal successors, (590), 443 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 590 transitions. [2022-10-16 14:45:46,446 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 590 transitions. Word has length 17 [2022-10-16 14:45:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:46,447 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 590 transitions. [2022-10-16 14:45:46,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 14:45:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 590 transitions. [2022-10-16 14:45:46,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:45:46,448 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:46,448 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:46,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:45:46,449 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:46,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:46,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1108794209, now seen corresponding path program 1 times [2022-10-16 14:45:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:46,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746530920] [2022-10-16 14:45:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:46,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:46,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:46,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746530920] [2022-10-16 14:45:46,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746530920] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:46,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219969019] [2022-10-16 14:45:46,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:46,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:46,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:46,537 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:46,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:45:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:46,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:45:46,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:46,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:46,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219969019] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:46,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:46,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:45:46,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305085163] [2022-10-16 14:45:46,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:46,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:45:46,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:46,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:45:46,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:45:46,689 INFO L87 Difference]: Start difference. First operand 444 states and 590 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 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 14:45:47,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:47,084 INFO L93 Difference]: Finished difference Result 1335 states and 1703 transitions. [2022-10-16 14:45:47,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:45:47,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 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 19 [2022-10-16 14:45:47,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:47,091 INFO L225 Difference]: With dead ends: 1335 [2022-10-16 14:45:47,092 INFO L226 Difference]: Without dead ends: 1333 [2022-10-16 14:45:47,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:45:47,093 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 336 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:47,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 469 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:45:47,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2022-10-16 14:45:47,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 564. [2022-10-16 14:45:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 550 states have (on average 1.3709090909090909) internal successors, (754), 563 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 754 transitions. [2022-10-16 14:45:47,143 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 754 transitions. Word has length 19 [2022-10-16 14:45:47,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:47,143 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 754 transitions. [2022-10-16 14:45:47,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 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 14:45:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 754 transitions. [2022-10-16 14:45:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 14:45:47,145 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:47,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:47,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:45:47,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:47,360 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:47,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:47,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1230163615, now seen corresponding path program 1 times [2022-10-16 14:45:47,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:47,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132672195] [2022-10-16 14:45:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:47,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:47,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:45:47,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:47,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132672195] [2022-10-16 14:45:47,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132672195] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:47,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:47,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:45:47,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529260668] [2022-10-16 14:45:47,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:47,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:47,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:47,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:47,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:47,423 INFO L87 Difference]: Start difference. First operand 564 states and 754 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 14:45:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:47,494 INFO L93 Difference]: Finished difference Result 992 states and 1334 transitions. [2022-10-16 14:45:47,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:47,499 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 21 [2022-10-16 14:45:47,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:47,506 INFO L225 Difference]: With dead ends: 992 [2022-10-16 14:45:47,506 INFO L226 Difference]: Without dead ends: 990 [2022-10-16 14:45:47,507 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 14:45:47,508 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:47,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 143 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:47,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-10-16 14:45:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 895. [2022-10-16 14:45:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 881 states have (on average 1.376844494892168) internal successors, (1213), 894 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1213 transitions. [2022-10-16 14:45:47,576 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1213 transitions. Word has length 21 [2022-10-16 14:45:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:47,576 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 1213 transitions. [2022-10-16 14:45:47,576 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 14:45:47,577 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1213 transitions. [2022-10-16 14:45:47,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:45:47,577 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:47,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:47,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:45:47,578 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:47,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:47,579 INFO L85 PathProgramCache]: Analyzing trace with hash -824485541, now seen corresponding path program 1 times [2022-10-16 14:45:47,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:47,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837723072] [2022-10-16 14:45:47,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:47,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:45:47,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:47,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837723072] [2022-10-16 14:45:47,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837723072] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:47,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:47,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:45:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172414596] [2022-10-16 14:45:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:47,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:47,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:47,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:47,645 INFO L87 Difference]: Start difference. First operand 895 states and 1213 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 14:45:47,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:47,749 INFO L93 Difference]: Finished difference Result 1310 states and 1803 transitions. [2022-10-16 14:45:47,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:47,749 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 22 [2022-10-16 14:45:47,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:47,756 INFO L225 Difference]: With dead ends: 1310 [2022-10-16 14:45:47,756 INFO L226 Difference]: Without dead ends: 1307 [2022-10-16 14:45:47,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:47,758 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 58 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:47,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 130 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:47,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2022-10-16 14:45:47,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1278. [2022-10-16 14:45:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1264 states have (on average 1.3765822784810127) internal successors, (1740), 1277 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:47,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1740 transitions. [2022-10-16 14:45:47,867 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1740 transitions. Word has length 22 [2022-10-16 14:45:47,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:47,868 INFO L495 AbstractCegarLoop]: Abstraction has 1278 states and 1740 transitions. [2022-10-16 14:45:47,868 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 14:45:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1740 transitions. [2022-10-16 14:45:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:45:47,869 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:47,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:47,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 14:45:47,869 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:47,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1405421999, now seen corresponding path program 1 times [2022-10-16 14:45:47,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:47,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617782483] [2022-10-16 14:45:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:47,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:45:47,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:47,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617782483] [2022-10-16 14:45:47,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617782483] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:47,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:47,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:45:47,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816290512] [2022-10-16 14:45:47,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:47,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:47,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:47,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:47,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:47,913 INFO L87 Difference]: Start difference. First operand 1278 states and 1740 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 14:45:48,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:48,029 INFO L93 Difference]: Finished difference Result 1573 states and 2152 transitions. [2022-10-16 14:45:48,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:48,029 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 22 [2022-10-16 14:45:48,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:48,037 INFO L225 Difference]: With dead ends: 1573 [2022-10-16 14:45:48,037 INFO L226 Difference]: Without dead ends: 1570 [2022-10-16 14:45:48,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:48,039 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 68 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:48,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 126 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:48,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-10-16 14:45:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1288. [2022-10-16 14:45:48,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1274 states have (on average 1.3814756671899528) internal successors, (1760), 1287 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:48,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1760 transitions. [2022-10-16 14:45:48,138 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1760 transitions. Word has length 22 [2022-10-16 14:45:48,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:48,138 INFO L495 AbstractCegarLoop]: Abstraction has 1288 states and 1760 transitions. [2022-10-16 14:45:48,138 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 14:45:48,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1760 transitions. [2022-10-16 14:45:48,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:45:48,139 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:48,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:48,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 14:45:48,140 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:48,140 INFO L85 PathProgramCache]: Analyzing trace with hash 210752115, now seen corresponding path program 1 times [2022-10-16 14:45:48,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:48,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361420915] [2022-10-16 14:45:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:48,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:45:48,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:48,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361420915] [2022-10-16 14:45:48,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361420915] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:48,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:48,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:45:48,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161880941] [2022-10-16 14:45:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:48,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:48,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:48,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:48,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:48,182 INFO L87 Difference]: Start difference. First operand 1288 states and 1760 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:48,289 INFO L93 Difference]: Finished difference Result 1290 states and 1760 transitions. [2022-10-16 14:45:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:48,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 14:45:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:48,296 INFO L225 Difference]: With dead ends: 1290 [2022-10-16 14:45:48,296 INFO L226 Difference]: Without dead ends: 1287 [2022-10-16 14:45:48,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:48,297 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 48 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:48,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 119 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:48,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-10-16 14:45:48,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1285. [2022-10-16 14:45:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1274 states have (on average 1.3649921507064364) internal successors, (1739), 1284 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1739 transitions. [2022-10-16 14:45:48,392 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1739 transitions. Word has length 23 [2022-10-16 14:45:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:48,392 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 1739 transitions. [2022-10-16 14:45:48,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:48,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1739 transitions. [2022-10-16 14:45:48,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:45:48,393 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:48,394 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:48,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:45:48,394 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:48,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:48,395 INFO L85 PathProgramCache]: Analyzing trace with hash 995848305, now seen corresponding path program 2 times [2022-10-16 14:45:48,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:48,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930232172] [2022-10-16 14:45:48,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:48,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:48,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:48,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930232172] [2022-10-16 14:45:48,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930232172] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:48,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221237294] [2022-10-16 14:45:48,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:45:48,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:48,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:48,537 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:48,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:45:48,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:45:48,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:45:48,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:45:48,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 14:45:48,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 14:45:48,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221237294] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:48,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:48,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 17 [2022-10-16 14:45:48,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546459265] [2022-10-16 14:45:48,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:48,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:45:48,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:48,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:45:48,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:45:48,708 INFO L87 Difference]: Start difference. First operand 1285 states and 1739 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 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 14:45:49,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:49,214 INFO L93 Difference]: Finished difference Result 4183 states and 5491 transitions. [2022-10-16 14:45:49,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:45:49,214 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 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) Word has length 29 [2022-10-16 14:45:49,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:49,234 INFO L225 Difference]: With dead ends: 4183 [2022-10-16 14:45:49,235 INFO L226 Difference]: Without dead ends: 4182 [2022-10-16 14:45:49,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 14:45:49,237 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 578 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:49,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 358 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:45:49,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2022-10-16 14:45:49,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 620. [2022-10-16 14:45:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 610 states have (on average 1.337704918032787) internal successors, (816), 619 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:49,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 816 transitions. [2022-10-16 14:45:49,321 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 816 transitions. Word has length 29 [2022-10-16 14:45:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:49,321 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 816 transitions. [2022-10-16 14:45:49,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 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 14:45:49,322 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 816 transitions. [2022-10-16 14:45:49,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:45:49,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:49,323 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:49,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 14:45:49,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:45:49,537 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:49,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:49,538 INFO L85 PathProgramCache]: Analyzing trace with hash 904378849, now seen corresponding path program 2 times [2022-10-16 14:45:49,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:49,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88087716] [2022-10-16 14:45:49,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:49,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:45:49,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:49,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88087716] [2022-10-16 14:45:49,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88087716] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:49,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10584997] [2022-10-16 14:45:49,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:45:49,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:49,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:49,605 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:49,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:45:49,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:45:49,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:45:49,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:45:49,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:49,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:45:49,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10584997] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:49,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:49,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9, 9] total 20 [2022-10-16 14:45:49,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185023118] [2022-10-16 14:45:49,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:49,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 14:45:49,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:49,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 14:45:49,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:45:49,840 INFO L87 Difference]: Start difference. First operand 620 states and 816 transitions. Second operand has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 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 14:45:50,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:50,663 INFO L93 Difference]: Finished difference Result 2535 states and 3218 transitions. [2022-10-16 14:45:50,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 14:45:50,664 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 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) Word has length 29 [2022-10-16 14:45:50,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:50,674 INFO L225 Difference]: With dead ends: 2535 [2022-10-16 14:45:50,674 INFO L226 Difference]: Without dead ends: 2534 [2022-10-16 14:45:50,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=849, Invalid=2121, Unknown=0, NotChecked=0, Total=2970 [2022-10-16 14:45:50,677 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1224 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:50,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 513 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:45:50,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2022-10-16 14:45:50,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 371. [2022-10-16 14:45:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 362 states have (on average 1.3232044198895028) internal successors, (479), 370 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 479 transitions. [2022-10-16 14:45:50,735 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 479 transitions. Word has length 29 [2022-10-16 14:45:50,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:50,736 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 479 transitions. [2022-10-16 14:45:50,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 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 14:45:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 479 transitions. [2022-10-16 14:45:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 14:45:50,737 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:50,737 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:50,777 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 14:45:50,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:45:50,952 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:50,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:50,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2006794102, now seen corresponding path program 1 times [2022-10-16 14:45:50,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:50,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176486512] [2022-10-16 14:45:50,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:50,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:45:51,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:51,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176486512] [2022-10-16 14:45:51,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176486512] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:51,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269429870] [2022-10-16 14:45:51,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:51,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:51,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:51,005 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:51,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:45:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:51,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:45:51,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:45:51,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:45:51,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269429870] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:51,140 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:51,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 12 [2022-10-16 14:45:51,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638135551] [2022-10-16 14:45:51,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:51,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:45:51,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:51,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:45:51,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:45:51,142 INFO L87 Difference]: Start difference. First operand 371 states and 479 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:51,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:51,480 INFO L93 Difference]: Finished difference Result 1064 states and 1382 transitions. [2022-10-16 14:45:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:45:51,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-10-16 14:45:51,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:51,484 INFO L225 Difference]: With dead ends: 1064 [2022-10-16 14:45:51,484 INFO L226 Difference]: Without dead ends: 715 [2022-10-16 14:45:51,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=230, Invalid=472, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:45:51,486 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 293 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:51,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 212 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:45:51,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2022-10-16 14:45:51,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 705. [2022-10-16 14:45:51,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 696 states have (on average 1.2327586206896552) internal successors, (858), 704 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 858 transitions. [2022-10-16 14:45:51,594 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 858 transitions. Word has length 37 [2022-10-16 14:45:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:51,594 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 858 transitions. [2022-10-16 14:45:51,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:51,595 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 858 transitions. [2022-10-16 14:45:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 14:45:51,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:51,596 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:51,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:45:51,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:51,811 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:51,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash -942113285, now seen corresponding path program 1 times [2022-10-16 14:45:51,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:51,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556193825] [2022-10-16 14:45:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:51,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-16 14:45:51,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:51,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556193825] [2022-10-16 14:45:51,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556193825] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:51,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465616124] [2022-10-16 14:45:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:51,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:51,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:51,896 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:51,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:45:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:51,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:45:51,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 53 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:45:52,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 53 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:45:52,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465616124] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:52,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:52,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 21 [2022-10-16 14:45:52,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878942889] [2022-10-16 14:45:52,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:52,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 14:45:52,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:52,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 14:45:52,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:45:52,181 INFO L87 Difference]: Start difference. First operand 705 states and 858 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:53,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:53,357 INFO L93 Difference]: Finished difference Result 2346 states and 2980 transitions. [2022-10-16 14:45:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-10-16 14:45:53,358 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 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 58 [2022-10-16 14:45:53,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:53,366 INFO L225 Difference]: With dead ends: 2346 [2022-10-16 14:45:53,366 INFO L226 Difference]: Without dead ends: 1685 [2022-10-16 14:45:53,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1707 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1411, Invalid=3701, Unknown=0, NotChecked=0, Total=5112 [2022-10-16 14:45:53,370 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 690 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:53,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 293 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:45:53,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2022-10-16 14:45:53,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1105. [2022-10-16 14:45:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1096 states have (on average 1.2180656934306568) internal successors, (1335), 1104 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1335 transitions. [2022-10-16 14:45:53,573 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1335 transitions. Word has length 58 [2022-10-16 14:45:53,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:53,573 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1335 transitions. [2022-10-16 14:45:53,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:53,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1335 transitions. [2022-10-16 14:45:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-16 14:45:53,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:53,576 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 8, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:53,604 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 14:45:53,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:53,791 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:53,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:53,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2046047729, now seen corresponding path program 1 times [2022-10-16 14:45:53,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:53,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762009394] [2022-10-16 14:45:53,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:53,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-10-16 14:45:53,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:53,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762009394] [2022-10-16 14:45:53,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762009394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:53,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:53,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:45:53,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974337200] [2022-10-16 14:45:53,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:53,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:53,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:53,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:53,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:53,896 INFO L87 Difference]: Start difference. First operand 1105 states and 1335 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:54,139 INFO L93 Difference]: Finished difference Result 1883 states and 2285 transitions. [2022-10-16 14:45:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-16 14:45:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:54,144 INFO L225 Difference]: With dead ends: 1883 [2022-10-16 14:45:54,145 INFO L226 Difference]: Without dead ends: 1153 [2022-10-16 14:45:54,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:54,146 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:54,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 95 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:54,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-10-16 14:45:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1105. [2022-10-16 14:45:54,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1096 states have (on average 1.2153284671532847) internal successors, (1332), 1104 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:54,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1332 transitions. [2022-10-16 14:45:54,328 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1332 transitions. Word has length 98 [2022-10-16 14:45:54,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:54,329 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1332 transitions. [2022-10-16 14:45:54,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:54,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1332 transitions. [2022-10-16 14:45:54,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-16 14:45:54,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:54,331 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:54,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 14:45:54,332 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:54,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:54,332 INFO L85 PathProgramCache]: Analyzing trace with hash 130152432, now seen corresponding path program 1 times [2022-10-16 14:45:54,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:54,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144893817] [2022-10-16 14:45:54,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:54,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-10-16 14:45:54,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:54,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144893817] [2022-10-16 14:45:54,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144893817] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:54,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768755418] [2022-10-16 14:45:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:54,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:54,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:54,436 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 14:45:54,460 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 14:45:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:54,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:45:54,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 261 proven. 112 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 14:45:54,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 261 proven. 112 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 14:45:55,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768755418] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:55,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:55,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 17, 17] total 36 [2022-10-16 14:45:55,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636087951] [2022-10-16 14:45:55,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:55,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 14:45:55,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:55,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 14:45:55,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:45:55,074 INFO L87 Difference]: Start difference. First operand 1105 states and 1332 transitions. Second operand has 36 states, 36 states have (on average 3.9166666666666665) internal successors, (141), 36 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:57,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:57,618 INFO L93 Difference]: Finished difference Result 3741 states and 4765 transitions. [2022-10-16 14:45:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-10-16 14:45:57,621 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.9166666666666665) internal successors, (141), 36 states have internal predecessors, (141), 0 states have call successors, (0), 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 98 [2022-10-16 14:45:57,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:57,634 INFO L225 Difference]: With dead ends: 3741 [2022-10-16 14:45:57,634 INFO L226 Difference]: Without dead ends: 2740 [2022-10-16 14:45:57,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4656 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3158, Invalid=10414, Unknown=0, NotChecked=0, Total=13572 [2022-10-16 14:45:57,641 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 709 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:57,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 549 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:45:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-10-16 14:45:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2735. [2022-10-16 14:45:58,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2726 states have (on average 1.2112986060161408) internal successors, (3302), 2734 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:58,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 3302 transitions. [2022-10-16 14:45:58,007 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 3302 transitions. Word has length 98 [2022-10-16 14:45:58,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:58,008 INFO L495 AbstractCegarLoop]: Abstraction has 2735 states and 3302 transitions. [2022-10-16 14:45:58,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.9166666666666665) internal successors, (141), 36 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 3302 transitions. [2022-10-16 14:45:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-16 14:45:58,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:58,012 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:58,040 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 14:45:58,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:58,225 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:58,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:58,227 INFO L85 PathProgramCache]: Analyzing trace with hash 195048754, now seen corresponding path program 1 times [2022-10-16 14:45:58,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:58,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768493278] [2022-10-16 14:45:58,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:58,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:58,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1164 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-10-16 14:45:58,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:58,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768493278] [2022-10-16 14:45:58,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768493278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:45:58,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:45:58,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:45:58,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673235582] [2022-10-16 14:45:58,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:45:58,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:45:58,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:58,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:45:58,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:58,464 INFO L87 Difference]: Start difference. First operand 2735 states and 3302 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:58,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:58,909 INFO L93 Difference]: Finished difference Result 3736 states and 4505 transitions. [2022-10-16 14:45:58,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:45:58,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2022-10-16 14:45:58,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:58,920 INFO L225 Difference]: With dead ends: 3736 [2022-10-16 14:45:58,920 INFO L226 Difference]: Without dead ends: 2406 [2022-10-16 14:45:58,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:45:58,923 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 86 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:58,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 80 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:45:58,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-10-16 14:45:59,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2401. [2022-10-16 14:45:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2401 states, 2392 states have (on average 1.2077759197324414) internal successors, (2889), 2400 states have internal predecessors, (2889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 2889 transitions. [2022-10-16 14:45:59,418 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 2889 transitions. Word has length 178 [2022-10-16 14:45:59,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:59,418 INFO L495 AbstractCegarLoop]: Abstraction has 2401 states and 2889 transitions. [2022-10-16 14:45:59,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:59,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 2889 transitions. [2022-10-16 14:45:59,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-10-16 14:45:59,422 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:59,422 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 16, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:59,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 14:45:59,423 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:45:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:59,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2090847228, now seen corresponding path program 1 times [2022-10-16 14:45:59,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:59,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306118554] [2022-10-16 14:45:59,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:59,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2240 backedges. 0 proven. 1160 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-10-16 14:45:59,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:59,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306118554] [2022-10-16 14:45:59,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306118554] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:59,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951651461] [2022-10-16 14:45:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:59,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:59,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:59,580 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 14:45:59,589 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 14:45:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:59,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 14:45:59,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:46:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2240 backedges. 1157 proven. 540 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2022-10-16 14:46:00,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:46:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2240 backedges. 1157 proven. 540 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2022-10-16 14:46:01,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951651461] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:46:01,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:46:01,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 33, 33] total 68 [2022-10-16 14:46:01,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281647776] [2022-10-16 14:46:01,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:46:01,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-16 14:46:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:46:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-16 14:46:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1007, Invalid=3549, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 14:46:01,095 INFO L87 Difference]: Start difference. First operand 2401 states and 2889 transitions. Second operand has 68 states, 68 states have (on average 3.3676470588235294) internal successors, (229), 68 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:04,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:46:04,901 INFO L93 Difference]: Finished difference Result 5273 states and 6479 transitions. [2022-10-16 14:46:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-10-16 14:46:04,902 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 3.3676470588235294) internal successors, (229), 68 states have internal predecessors, (229), 0 states have call successors, (0), 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 179 [2022-10-16 14:46:04,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:46:04,915 INFO L225 Difference]: With dead ends: 5273 [2022-10-16 14:46:04,916 INFO L226 Difference]: Without dead ends: 3096 [2022-10-16 14:46:04,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10154 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=6981, Invalid=22089, Unknown=0, NotChecked=0, Total=29070 [2022-10-16 14:46:04,928 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 1100 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:46:04,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 233 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:46:04,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2022-10-16 14:46:05,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2750. [2022-10-16 14:46:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2741 states have (on average 1.2079533017147026) internal successors, (3311), 2749 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3311 transitions. [2022-10-16 14:46:05,428 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3311 transitions. Word has length 179 [2022-10-16 14:46:05,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:46:05,429 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 3311 transitions. [2022-10-16 14:46:05,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.3676470588235294) internal successors, (229), 68 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3311 transitions. [2022-10-16 14:46:05,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-10-16 14:46:05,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:46:05,434 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:46:05,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:46:05,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-10-16 14:46:05,649 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:46:05,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:46:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1557128392, now seen corresponding path program 1 times [2022-10-16 14:46:05,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:46:05,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257291596] [2022-10-16 14:46:05,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:05,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:46:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3989 backedges. 2049 proven. 0 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 14:46:05,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:46:05,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257291596] [2022-10-16 14:46:05,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257291596] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:46:05,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:46:05,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:46:05,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339561279] [2022-10-16 14:46:05,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:46:05,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:46:05,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:46:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:46:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:46:05,813 INFO L87 Difference]: Start difference. First operand 2750 states and 3311 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 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 14:46:06,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:46:06,291 INFO L93 Difference]: Finished difference Result 2752 states and 3311 transitions. [2022-10-16 14:46:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:46:06,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 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 230 [2022-10-16 14:46:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:46:06,317 INFO L225 Difference]: With dead ends: 2752 [2022-10-16 14:46:06,317 INFO L226 Difference]: Without dead ends: 2750 [2022-10-16 14:46:06,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:46:06,319 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 8 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:46:06,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 107 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:46:06,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2022-10-16 14:46:06,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2750. [2022-10-16 14:46:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2741 states have (on average 1.2061291499452755) internal successors, (3306), 2749 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:06,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3306 transitions. [2022-10-16 14:46:06,848 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3306 transitions. Word has length 230 [2022-10-16 14:46:06,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:46:06,849 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 3306 transitions. [2022-10-16 14:46:06,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 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 14:46:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3306 transitions. [2022-10-16 14:46:06,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-10-16 14:46:06,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:46:06,856 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:46:06,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 14:46:06,856 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:46:06,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:46:06,857 INFO L85 PathProgramCache]: Analyzing trace with hash -196311396, now seen corresponding path program 1 times [2022-10-16 14:46:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:46:06,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198617502] [2022-10-16 14:46:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:46:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 0 proven. 2050 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 14:46:07,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:46:07,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198617502] [2022-10-16 14:46:07,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198617502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:46:07,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194854410] [2022-10-16 14:46:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:07,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:46:07,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:46:07,175 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:46:07,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:46:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:07,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 42 conjunts are in the unsatisfiable core [2022-10-16 14:46:07,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:46:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 2942 proven. 117 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2022-10-16 14:46:08,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:46:09,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 2941 proven. 118 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2022-10-16 14:46:09,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194854410] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:46:09,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:46:09,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 43, 43] total 86 [2022-10-16 14:46:09,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936393198] [2022-10-16 14:46:09,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:46:09,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-10-16 14:46:09,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:46:09,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-10-16 14:46:09,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1620, Invalid=5690, Unknown=0, NotChecked=0, Total=7310 [2022-10-16 14:46:09,363 INFO L87 Difference]: Start difference. First operand 2750 states and 3306 transitions. Second operand has 86 states, 86 states have (on average 3.4302325581395348) internal successors, (295), 86 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:38,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:46:38,875 INFO L93 Difference]: Finished difference Result 7076 states and 8248 transitions. [2022-10-16 14:46:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 706 states. [2022-10-16 14:46:38,876 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 3.4302325581395348) internal successors, (295), 86 states have internal predecessors, (295), 0 states have call successors, (0), 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 232 [2022-10-16 14:46:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:46:38,885 INFO L225 Difference]: With dead ends: 7076 [2022-10-16 14:46:38,885 INFO L226 Difference]: Without dead ends: 5797 [2022-10-16 14:46:38,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1151 GetRequests, 382 SyntacticMatches, 1 SemanticMatches, 768 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254368 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=96074, Invalid=496056, Unknown=0, NotChecked=0, Total=592130 [2022-10-16 14:46:38,938 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1304 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:46:38,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 525 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 3782 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 14:46:38,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2022-10-16 14:46:39,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 3572. [2022-10-16 14:46:39,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3572 states, 3563 states have (on average 1.189447095144541) internal successors, (4238), 3571 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 4238 transitions. [2022-10-16 14:46:39,511 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 4238 transitions. Word has length 232 [2022-10-16 14:46:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:46:39,511 INFO L495 AbstractCegarLoop]: Abstraction has 3572 states and 4238 transitions. [2022-10-16 14:46:39,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.4302325581395348) internal successors, (295), 86 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 4238 transitions. [2022-10-16 14:46:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-10-16 14:46:39,518 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:46:39,518 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:46:39,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 14:46:39,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 14:46:39,734 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:46:39,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:46:39,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1197306200, now seen corresponding path program 1 times [2022-10-16 14:46:39,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:46:39,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576514404] [2022-10-16 14:46:39,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:39,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:46:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3992 backedges. 0 proven. 2052 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 14:46:39,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:46:39,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576514404] [2022-10-16 14:46:39,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576514404] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:46:39,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744716622] [2022-10-16 14:46:39,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:39,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:46:39,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:46:39,991 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:46:40,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:46:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:40,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:46:40,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:46:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3992 backedges. 0 proven. 2052 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 14:46:40,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:46:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3992 backedges. 0 proven. 2052 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 14:46:40,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744716622] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:46:40,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:46:40,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:46:40,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895637629] [2022-10-16 14:46:40,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:46:40,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:46:40,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:46:40,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:46:40,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:46:40,547 INFO L87 Difference]: Start difference. First operand 3572 states and 4238 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:41,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:46:41,724 INFO L93 Difference]: Finished difference Result 7173 states and 8573 transitions. [2022-10-16 14:46:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:46:41,724 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 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 233 [2022-10-16 14:46:41,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:46:41,735 INFO L225 Difference]: With dead ends: 7173 [2022-10-16 14:46:41,735 INFO L226 Difference]: Without dead ends: 7172 [2022-10-16 14:46:41,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:46:41,738 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 203 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:46:41,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 284 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:46:41,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7172 states. [2022-10-16 14:46:42,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7172 to 7139. [2022-10-16 14:46:42,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7139 states, 7130 states have (on average 1.1994389901823281) internal successors, (8552), 7138 states have internal predecessors, (8552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7139 states to 7139 states and 8552 transitions. [2022-10-16 14:46:42,826 INFO L78 Accepts]: Start accepts. Automaton has 7139 states and 8552 transitions. Word has length 233 [2022-10-16 14:46:42,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:46:42,826 INFO L495 AbstractCegarLoop]: Abstraction has 7139 states and 8552 transitions. [2022-10-16 14:46:42,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7139 states and 8552 transitions. [2022-10-16 14:46:42,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-10-16 14:46:42,833 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:46:42,833 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:46:42,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-16 14:46:43,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:46:43,047 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:46:43,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:46:43,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1596248866, now seen corresponding path program 1 times [2022-10-16 14:46:43,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:46:43,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042909717] [2022-10-16 14:46:43,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:43,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:46:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3988 backedges. 0 proven. 2048 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 14:46:43,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:46:43,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042909717] [2022-10-16 14:46:43,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042909717] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:46:43,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67048289] [2022-10-16 14:46:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:43,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:46:43,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:46:43,274 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:46:43,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:46:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:43,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 14:46:43,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:46:44,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3988 backedges. 2977 proven. 80 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2022-10-16 14:46:44,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:46:46,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3988 backedges. 971 proven. 2086 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2022-10-16 14:46:46,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67048289] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:46:46,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:46:46,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 45, 45] total 91 [2022-10-16 14:46:46,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989639736] [2022-10-16 14:46:46,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:46:46,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-10-16 14:46:46,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:46:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-10-16 14:46:46,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1906, Invalid=6284, Unknown=0, NotChecked=0, Total=8190 [2022-10-16 14:46:46,488 INFO L87 Difference]: Start difference. First operand 7139 states and 8552 transitions. Second operand has 91 states, 91 states have (on average 3.4945054945054945) internal successors, (318), 91 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:51,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:46:51,970 INFO L93 Difference]: Finished difference Result 17528 states and 20634 transitions. [2022-10-16 14:46:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-10-16 14:46:51,971 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 91 states have (on average 3.4945054945054945) internal successors, (318), 91 states have internal predecessors, (318), 0 states have call successors, (0), 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 234 [2022-10-16 14:46:51,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:46:51,990 INFO L225 Difference]: With dead ends: 17528 [2022-10-16 14:46:51,991 INFO L226 Difference]: Without dead ends: 11333 [2022-10-16 14:46:52,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14456 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=11561, Invalid=36181, Unknown=0, NotChecked=0, Total=47742 [2022-10-16 14:46:52,004 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 850 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:46:52,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 979 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 14:46:52,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11333 states. [2022-10-16 14:46:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11333 to 6447. [2022-10-16 14:46:52,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6447 states, 6439 states have (on average 1.115701195837863) internal successors, (7184), 6446 states have internal predecessors, (7184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:53,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6447 states to 6447 states and 7184 transitions. [2022-10-16 14:46:53,000 INFO L78 Accepts]: Start accepts. Automaton has 6447 states and 7184 transitions. Word has length 234 [2022-10-16 14:46:53,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:46:53,001 INFO L495 AbstractCegarLoop]: Abstraction has 6447 states and 7184 transitions. [2022-10-16 14:46:53,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 3.4945054945054945) internal successors, (318), 91 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand 6447 states and 7184 transitions. [2022-10-16 14:46:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-10-16 14:46:53,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:46:53,006 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:46:53,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:46:53,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 14:46:53,221 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:46:53,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:46:53,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1538213345, now seen corresponding path program 1 times [2022-10-16 14:46:53,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:46:53,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718106194] [2022-10-16 14:46:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:53,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:46:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:53,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3993 backedges. 0 proven. 2053 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 14:46:53,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:46:53,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718106194] [2022-10-16 14:46:53,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718106194] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:46:53,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508116172] [2022-10-16 14:46:53,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:53,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:46:53,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:46:53,580 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:46:53,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:46:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:53,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:46:53,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:46:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3993 backedges. 2053 proven. 0 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 14:46:53,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:46:53,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508116172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:46:53,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:46:53,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 14:46:53,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892258670] [2022-10-16 14:46:53,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:46:53,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:46:53,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:46:53,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:46:53,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:46:53,810 INFO L87 Difference]: Start difference. First operand 6447 states and 7184 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:54,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:46:54,647 INFO L93 Difference]: Finished difference Result 6447 states and 7184 transitions. [2022-10-16 14:46:54,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:46:54,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2022-10-16 14:46:54,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:46:54,659 INFO L225 Difference]: With dead ends: 6447 [2022-10-16 14:46:54,659 INFO L226 Difference]: Without dead ends: 6446 [2022-10-16 14:46:54,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 233 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 14:46:54,663 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 21 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:46:54,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 77 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:46:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6446 states. [2022-10-16 14:46:55,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6446 to 6446. [2022-10-16 14:46:55,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6446 states, 6439 states have (on average 1.1136822487963969) internal successors, (7171), 6445 states have internal predecessors, (7171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6446 states to 6446 states and 7171 transitions. [2022-10-16 14:46:55,572 INFO L78 Accepts]: Start accepts. Automaton has 6446 states and 7171 transitions. Word has length 234 [2022-10-16 14:46:55,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:46:55,572 INFO L495 AbstractCegarLoop]: Abstraction has 6446 states and 7171 transitions. [2022-10-16 14:46:55,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:55,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6446 states and 7171 transitions. [2022-10-16 14:46:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-10-16 14:46:55,580 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:46:55,580 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 60, 41, 19, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:46:55,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:46:55,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:46:55,794 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:46:55,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:46:55,795 INFO L85 PathProgramCache]: Analyzing trace with hash 979639857, now seen corresponding path program 1 times [2022-10-16 14:46:55,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:46:55,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501240733] [2022-10-16 14:46:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:55,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:46:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 9052 backedges. 0 proven. 6142 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:46:56,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:46:56,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501240733] [2022-10-16 14:46:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501240733] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:46:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794910453] [2022-10-16 14:46:56,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:56,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:46:56,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:46:56,081 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:46:56,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:46:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:56,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 14:46:56,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:46:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 9052 backedges. 5127 proven. 216 refuted. 0 times theorem prover too weak. 3709 trivial. 0 not checked. [2022-10-16 14:46:57,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:46:58,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9052 backedges. 5122 proven. 221 refuted. 0 times theorem prover too weak. 3709 trivial. 0 not checked. [2022-10-16 14:46:58,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794910453] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:46:58,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:46:58,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 45, 45] total 88 [2022-10-16 14:46:58,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382453594] [2022-10-16 14:46:58,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:46:58,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-10-16 14:46:58,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:46:58,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-10-16 14:46:58,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1559, Invalid=6097, Unknown=0, NotChecked=0, Total=7656 [2022-10-16 14:46:58,421 INFO L87 Difference]: Start difference. First operand 6446 states and 7171 transitions. Second operand has 88 states, 88 states have (on average 3.6931818181818183) internal successors, (325), 88 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:28,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:28,238 INFO L93 Difference]: Finished difference Result 17545 states and 19486 transitions. [2022-10-16 14:47:28,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 696 states. [2022-10-16 14:47:28,238 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 3.6931818181818183) internal successors, (325), 88 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2022-10-16 14:47:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:28,255 INFO L225 Difference]: With dead ends: 17545 [2022-10-16 14:47:28,255 INFO L226 Difference]: Without dead ends: 12137 [2022-10-16 14:47:28,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1361 GetRequests, 598 SyntacticMatches, 3 SemanticMatches, 760 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247237 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=91243, Invalid=488639, Unknown=0, NotChecked=0, Total=579882 [2022-10-16 14:47:28,302 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 919 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 4772 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 4879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:28,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 494 Invalid, 4879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4772 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 14:47:28,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12137 states. [2022-10-16 14:47:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12137 to 8716. [2022-10-16 14:47:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8716 states, 8709 states have (on average 1.1032265472499714) internal successors, (9608), 8715 states have internal predecessors, (9608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:29,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8716 states to 8716 states and 9608 transitions. [2022-10-16 14:47:29,743 INFO L78 Accepts]: Start accepts. Automaton has 8716 states and 9608 transitions. Word has length 342 [2022-10-16 14:47:29,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:29,743 INFO L495 AbstractCegarLoop]: Abstraction has 8716 states and 9608 transitions. [2022-10-16 14:47:29,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 3.6931818181818183) internal successors, (325), 88 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:29,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8716 states and 9608 transitions. [2022-10-16 14:47:29,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-10-16 14:47:29,750 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:29,750 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 60, 60, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:47:29,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:47:29,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:29,952 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:47:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:29,953 INFO L85 PathProgramCache]: Analyzing trace with hash -368068681, now seen corresponding path program 2 times [2022-10-16 14:47:29,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:29,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866756543] [2022-10-16 14:47:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:29,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:30,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9061 backedges. 0 proven. 6151 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:30,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:30,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866756543] [2022-10-16 14:47:30,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866756543] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:30,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27585307] [2022-10-16 14:47:30,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:47:30,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:30,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:30,244 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:47:30,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:47:30,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:47:30,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:47:30,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:47:30,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 9061 backedges. 0 proven. 6151 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:30,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 9061 backedges. 0 proven. 6151 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:31,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27585307] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:31,319 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:31,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-16 14:47:31,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793182945] [2022-10-16 14:47:31,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:31,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:47:31,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:31,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:47:31,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:47:31,327 INFO L87 Difference]: Start difference. First operand 8716 states and 9608 transitions. Second operand has 9 states, 8 states have (on average 15.75) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:33,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:33,480 INFO L93 Difference]: Finished difference Result 16592 states and 18419 transitions. [2022-10-16 14:47:33,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:47:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.75) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 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 342 [2022-10-16 14:47:33,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:33,498 INFO L225 Difference]: With dead ends: 16592 [2022-10-16 14:47:33,498 INFO L226 Difference]: Without dead ends: 16590 [2022-10-16 14:47:33,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:47:33,503 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 110 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:33,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 257 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:33,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16590 states. [2022-10-16 14:47:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16590 to 16519. [2022-10-16 14:47:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16519 states, 16512 states have (on average 1.102955426356589) internal successors, (18212), 16518 states have internal predecessors, (18212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:35,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16519 states to 16519 states and 18212 transitions. [2022-10-16 14:47:35,977 INFO L78 Accepts]: Start accepts. Automaton has 16519 states and 18212 transitions. Word has length 342 [2022-10-16 14:47:35,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:35,978 INFO L495 AbstractCegarLoop]: Abstraction has 16519 states and 18212 transitions. [2022-10-16 14:47:35,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.75) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand 16519 states and 18212 transitions. [2022-10-16 14:47:35,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-10-16 14:47:35,991 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:35,992 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 60, 38, 22, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:36,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:47:36,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:36,207 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:47:36,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1691571317, now seen corresponding path program 1 times [2022-10-16 14:47:36,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:36,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626078758] [2022-10-16 14:47:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:36,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:36,597 INFO L134 CoverageAnalysis]: Checked inductivity of 9057 backedges. 0 proven. 6147 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:36,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:36,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626078758] [2022-10-16 14:47:36,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626078758] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:36,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364660399] [2022-10-16 14:47:36,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:36,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:36,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:36,600 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:47:36,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:47:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:36,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:47:36,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9057 backedges. 0 proven. 6147 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:37,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:37,626 INFO L134 CoverageAnalysis]: Checked inductivity of 9057 backedges. 0 proven. 6147 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:37,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364660399] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:37,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:37,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-16 14:47:37,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166425936] [2022-10-16 14:47:37,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:37,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:47:37,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:37,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:47:37,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:47:37,630 INFO L87 Difference]: Start difference. First operand 16519 states and 18212 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:40,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:40,928 INFO L93 Difference]: Finished difference Result 27299 states and 30181 transitions. [2022-10-16 14:47:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:47:40,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 0 states have call successors, (0), 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 344 [2022-10-16 14:47:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:40,953 INFO L225 Difference]: With dead ends: 27299 [2022-10-16 14:47:40,953 INFO L226 Difference]: Without dead ends: 27297 [2022-10-16 14:47:40,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:47:40,959 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 150 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:40,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 280 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27297 states. [2022-10-16 14:47:44,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27297 to 26617. [2022-10-16 14:47:44,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26617 states, 26610 states have (on average 1.0996993611424277) internal successors, (29263), 26616 states have internal predecessors, (29263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26617 states to 26617 states and 29263 transitions. [2022-10-16 14:47:44,478 INFO L78 Accepts]: Start accepts. Automaton has 26617 states and 29263 transitions. Word has length 344 [2022-10-16 14:47:44,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:44,479 INFO L495 AbstractCegarLoop]: Abstraction has 26617 states and 29263 transitions. [2022-10-16 14:47:44,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:44,480 INFO L276 IsEmpty]: Start isEmpty. Operand 26617 states and 29263 transitions. [2022-10-16 14:47:44,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-10-16 14:47:44,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:44,490 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 60, 60, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:44,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:47:44,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:44,704 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:47:44,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:44,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1722526445, now seen corresponding path program 1 times [2022-10-16 14:47:44,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:44,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049486689] [2022-10-16 14:47:44,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:44,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 9063 backedges. 6153 proven. 0 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:44,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:44,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049486689] [2022-10-16 14:47:44,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049486689] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:44,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:44,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:47:44,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502057125] [2022-10-16 14:47:44,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:44,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:44,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:44,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:44,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:44,880 INFO L87 Difference]: Start difference. First operand 26617 states and 29263 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:48,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:48,606 INFO L93 Difference]: Finished difference Result 42419 states and 46879 transitions. [2022-10-16 14:47:48,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:47:48,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 345 [2022-10-16 14:47:48,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:48,633 INFO L225 Difference]: With dead ends: 42419 [2022-10-16 14:47:48,634 INFO L226 Difference]: Without dead ends: 26915 [2022-10-16 14:47:48,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:48,649 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 54 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:48,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 135 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:48,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26915 states. [2022-10-16 14:47:52,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26915 to 26617. [2022-10-16 14:47:52,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26617 states, 26610 states have (on average 1.0974069898534387) internal successors, (29202), 26616 states have internal predecessors, (29202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26617 states to 26617 states and 29202 transitions. [2022-10-16 14:47:52,338 INFO L78 Accepts]: Start accepts. Automaton has 26617 states and 29202 transitions. Word has length 345 [2022-10-16 14:47:52,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:52,339 INFO L495 AbstractCegarLoop]: Abstraction has 26617 states and 29202 transitions. [2022-10-16 14:47:52,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:52,339 INFO L276 IsEmpty]: Start isEmpty. Operand 26617 states and 29202 transitions. [2022-10-16 14:47:52,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-10-16 14:47:52,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:52,348 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 60, 43, 17, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:52,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-16 14:47:52,348 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:47:52,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:52,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2106896025, now seen corresponding path program 1 times [2022-10-16 14:47:52,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:52,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359956901] [2022-10-16 14:47:52,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:52,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 9063 backedges. 6153 proven. 0 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:52,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:52,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359956901] [2022-10-16 14:47:52,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359956901] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:52,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:52,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:47:52,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753795642] [2022-10-16 14:47:52,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:52,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:47:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:52,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:47:52,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:47:52,487 INFO L87 Difference]: Start difference. First operand 26617 states and 29202 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:55,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:55,386 INFO L93 Difference]: Finished difference Result 32597 states and 35854 transitions. [2022-10-16 14:47:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:47:55,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 347 [2022-10-16 14:47:55,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:55,406 INFO L225 Difference]: With dead ends: 32597 [2022-10-16 14:47:55,406 INFO L226 Difference]: Without dead ends: 21524 [2022-10-16 14:47:55,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:47:55,418 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:55,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 104 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:55,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21524 states. [2022-10-16 14:47:58,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21524 to 21511. [2022-10-16 14:47:58,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21511 states, 21504 states have (on average 1.093656994047619) internal successors, (23518), 21510 states have internal predecessors, (23518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:58,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21511 states to 21511 states and 23518 transitions. [2022-10-16 14:47:58,056 INFO L78 Accepts]: Start accepts. Automaton has 21511 states and 23518 transitions. Word has length 347 [2022-10-16 14:47:58,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:58,057 INFO L495 AbstractCegarLoop]: Abstraction has 21511 states and 23518 transitions. [2022-10-16 14:47:58,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 21511 states and 23518 transitions. [2022-10-16 14:47:58,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-10-16 14:47:58,064 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:58,065 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 60, 60, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:58,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-10-16 14:47:58,065 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:47:58,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:58,065 INFO L85 PathProgramCache]: Analyzing trace with hash -214924655, now seen corresponding path program 1 times [2022-10-16 14:47:58,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:58,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223078280] [2022-10-16 14:47:58,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:58,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9065 backedges. 4103 proven. 2052 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2022-10-16 14:47:58,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:58,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223078280] [2022-10-16 14:47:58,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223078280] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:58,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057110621] [2022-10-16 14:47:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:58,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:58,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:58,299 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:47:58,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:47:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:58,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:58,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 9065 backedges. 4103 proven. 0 refuted. 0 times theorem prover too weak. 4962 trivial. 0 not checked. [2022-10-16 14:47:58,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:47:58,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057110621] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:58,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:47:58,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 8 [2022-10-16 14:47:58,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935839505] [2022-10-16 14:47:58,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:58,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:58,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:58,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:58,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:47:58,785 INFO L87 Difference]: Start difference. First operand 21511 states and 23518 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:01,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:01,109 INFO L93 Difference]: Finished difference Result 25569 states and 28018 transitions. [2022-10-16 14:48:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:48:01,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 347 [2022-10-16 14:48:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:01,130 INFO L225 Difference]: With dead ends: 25569 [2022-10-16 14:48:01,130 INFO L226 Difference]: Without dead ends: 19602 [2022-10-16 14:48:01,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:48:01,139 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 131 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:01,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 129 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:48:01,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19602 states. [2022-10-16 14:48:03,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19602 to 19594. [2022-10-16 14:48:03,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19594 states, 19587 states have (on average 1.0912339817225711) internal successors, (21374), 19593 states have internal predecessors, (21374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:03,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19594 states to 19594 states and 21374 transitions. [2022-10-16 14:48:03,627 INFO L78 Accepts]: Start accepts. Automaton has 19594 states and 21374 transitions. Word has length 347 [2022-10-16 14:48:03,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:03,627 INFO L495 AbstractCegarLoop]: Abstraction has 19594 states and 21374 transitions. [2022-10-16 14:48:03,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:03,628 INFO L276 IsEmpty]: Start isEmpty. Operand 19594 states and 21374 transitions. [2022-10-16 14:48:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2022-10-16 14:48:03,640 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:03,640 INFO L195 NwaCegarLoop]: trace histogram [80, 80, 80, 80, 53, 27, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:03,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:48:03,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:03,841 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:48:03,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:03,842 INFO L85 PathProgramCache]: Analyzing trace with hash 988550498, now seen corresponding path program 1 times [2022-10-16 14:48:03,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:03,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818089013] [2022-10-16 14:48:03,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:03,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:04,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16184 backedges. 0 proven. 12304 refuted. 0 times theorem prover too weak. 3880 trivial. 0 not checked. [2022-10-16 14:48:04,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:04,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818089013] [2022-10-16 14:48:04,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818089013] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:48:04,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470735508] [2022-10-16 14:48:04,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:04,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:04,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:48:04,251 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:48:04,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:48:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:04,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:48:04,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:48:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 16184 backedges. 6566 proven. 144 refuted. 0 times theorem prover too weak. 9474 trivial. 0 not checked. [2022-10-16 14:48:04,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:48:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 16184 backedges. 6435 proven. 275 refuted. 0 times theorem prover too weak. 9474 trivial. 0 not checked. [2022-10-16 14:48:04,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470735508] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:48:04,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:48:04,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 16 [2022-10-16 14:48:04,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493418925] [2022-10-16 14:48:04,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:48:04,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:48:04,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:04,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:48:04,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:48:04,853 INFO L87 Difference]: Start difference. First operand 19594 states and 21374 transitions. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:08,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:08,809 INFO L93 Difference]: Finished difference Result 37442 states and 41010 transitions. [2022-10-16 14:48:08,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-10-16 14:48:08,810 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 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 463 [2022-10-16 14:48:08,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:08,841 INFO L225 Difference]: With dead ends: 37442 [2022-10-16 14:48:08,841 INFO L226 Difference]: Without dead ends: 22666 [2022-10-16 14:48:08,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 912 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1965 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1034, Invalid=4666, Unknown=0, NotChecked=0, Total=5700 [2022-10-16 14:48:08,861 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 505 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:08,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 526 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:48:08,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22666 states. [2022-10-16 14:48:11,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22666 to 21248. [2022-10-16 14:48:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21248 states, 21241 states have (on average 1.0895438067887575) internal successors, (23143), 21247 states have internal predecessors, (23143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21248 states to 21248 states and 23143 transitions. [2022-10-16 14:48:11,423 INFO L78 Accepts]: Start accepts. Automaton has 21248 states and 23143 transitions. Word has length 463 [2022-10-16 14:48:11,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:11,423 INFO L495 AbstractCegarLoop]: Abstraction has 21248 states and 23143 transitions. [2022-10-16 14:48:11,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:11,424 INFO L276 IsEmpty]: Start isEmpty. Operand 21248 states and 23143 transitions. [2022-10-16 14:48:11,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2022-10-16 14:48:11,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:11,441 INFO L195 NwaCegarLoop]: trace histogram [80, 80, 80, 80, 51, 29, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:11,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-10-16 14:48:11,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:11,642 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:48:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:11,643 INFO L85 PathProgramCache]: Analyzing trace with hash 189008106, now seen corresponding path program 2 times [2022-10-16 14:48:11,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:11,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058412626] [2022-10-16 14:48:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:11,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 16184 backedges. 0 proven. 12304 refuted. 0 times theorem prover too weak. 3880 trivial. 0 not checked. [2022-10-16 14:48:12,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:12,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058412626] [2022-10-16 14:48:12,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058412626] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:48:12,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282837174] [2022-10-16 14:48:12,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:48:12,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:12,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:48:12,101 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:48:12,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:48:12,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:48:12,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:48:12,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 14:48:12,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:48:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 16184 backedges. 7684 proven. 429 refuted. 0 times theorem prover too weak. 8071 trivial. 0 not checked. [2022-10-16 14:48:13,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:48:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 16184 backedges. 7671 proven. 442 refuted. 0 times theorem prover too weak. 8071 trivial. 0 not checked. [2022-10-16 14:48:14,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282837174] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:48:14,660 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:48:14,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 49, 49] total 93 [2022-10-16 14:48:14,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430154585] [2022-10-16 14:48:14,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:48:14,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-10-16 14:48:14,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:14,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-10-16 14:48:14,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1472, Invalid=7084, Unknown=0, NotChecked=0, Total=8556 [2022-10-16 14:48:14,664 INFO L87 Difference]: Start difference. First operand 21248 states and 23143 transitions. Second operand has 93 states, 93 states have (on average 3.881720430107527) internal successors, (361), 93 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:50,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:50,694 INFO L93 Difference]: Finished difference Result 40622 states and 44389 transitions. [2022-10-16 14:48:50,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 796 states. [2022-10-16 14:48:50,698 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 3.881720430107527) internal successors, (361), 93 states have internal predecessors, (361), 0 states have call successors, (0), 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 463 [2022-10-16 14:48:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:50,725 INFO L225 Difference]: With dead ends: 40622 [2022-10-16 14:48:50,725 INFO L226 Difference]: Without dead ends: 24410 [2022-10-16 14:48:50,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1704 GetRequests, 832 SyntacticMatches, 7 SemanticMatches, 865 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342069 ImplicationChecksByTransitivity, 30.1s TimeCoverageRelationStatistics Valid=103682, Invalid=647140, Unknown=0, NotChecked=0, Total=750822 [2022-10-16 14:48:50,767 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 2339 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 3842 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 4064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 3842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:50,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 398 Invalid, 4064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 3842 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 14:48:50,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24410 states. [2022-10-16 14:48:53,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24410 to 21366. [2022-10-16 14:48:53,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21366 states, 21359 states have (on average 1.0767826209092186) internal successors, (22999), 21365 states have internal predecessors, (22999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21366 states to 21366 states and 22999 transitions. [2022-10-16 14:48:53,421 INFO L78 Accepts]: Start accepts. Automaton has 21366 states and 22999 transitions. Word has length 463 [2022-10-16 14:48:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:53,421 INFO L495 AbstractCegarLoop]: Abstraction has 21366 states and 22999 transitions. [2022-10-16 14:48:53,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 3.881720430107527) internal successors, (361), 93 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:53,422 INFO L276 IsEmpty]: Start isEmpty. Operand 21366 states and 22999 transitions. [2022-10-16 14:48:53,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-10-16 14:48:53,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:53,436 INFO L195 NwaCegarLoop]: trace histogram [80, 80, 80, 80, 80, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:53,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:48:53,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 14:48:53,637 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:48:53,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:53,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1016213788, now seen corresponding path program 2 times [2022-10-16 14:48:53,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:53,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136805021] [2022-10-16 14:48:53,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:53,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:53,951 INFO L134 CoverageAnalysis]: Checked inductivity of 16198 backedges. 8212 proven. 2052 refuted. 0 times theorem prover too weak. 5934 trivial. 0 not checked. [2022-10-16 14:48:53,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:53,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136805021] [2022-10-16 14:48:53,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136805021] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:48:53,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029214911] [2022-10-16 14:48:53,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:48:53,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:53,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:48:53,954 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:48:53,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:48:54,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:48:54,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:48:54,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:48:54,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:48:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 16198 backedges. 8212 proven. 2054 refuted. 0 times theorem prover too weak. 5932 trivial. 0 not checked. [2022-10-16 14:48:54,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:48:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 16198 backedges. 8212 proven. 2054 refuted. 0 times theorem prover too weak. 5932 trivial. 0 not checked. [2022-10-16 14:48:55,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029214911] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:48:55,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:48:55,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 16 [2022-10-16 14:48:55,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262769194] [2022-10-16 14:48:55,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:48:55,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:48:55,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:55,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:48:55,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:48:55,166 INFO L87 Difference]: Start difference. First operand 21366 states and 22999 transitions. Second operand has 16 states, 16 states have (on average 11.1875) internal successors, (179), 16 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:57,843 INFO L93 Difference]: Finished difference Result 23514 states and 25345 transitions. [2022-10-16 14:48:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 14:48:57,843 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.1875) internal successors, (179), 16 states have internal predecessors, (179), 0 states have call successors, (0), 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 464 [2022-10-16 14:48:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:57,862 INFO L225 Difference]: With dead ends: 23514 [2022-10-16 14:48:57,862 INFO L226 Difference]: Without dead ends: 19844 [2022-10-16 14:48:57,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 946 GetRequests, 919 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-10-16 14:48:57,869 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 749 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:57,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 574 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:48:57,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19844 states. [2022-10-16 14:49:00,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19844 to 19603. [2022-10-16 14:49:00,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19603 states, 19598 states have (on average 1.0726094499438719) internal successors, (21021), 19602 states have internal predecessors, (21021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19603 states to 19603 states and 21021 transitions. [2022-10-16 14:49:00,508 INFO L78 Accepts]: Start accepts. Automaton has 19603 states and 21021 transitions. Word has length 464 [2022-10-16 14:49:00,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:00,508 INFO L495 AbstractCegarLoop]: Abstraction has 19603 states and 21021 transitions. [2022-10-16 14:49:00,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.1875) internal successors, (179), 16 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 19603 states and 21021 transitions. [2022-10-16 14:49:00,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2022-10-16 14:49:00,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:00,519 INFO L195 NwaCegarLoop]: trace histogram [80, 80, 80, 80, 80, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2022-10-16 14:49:00,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 14:49:00,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 14:49:00,720 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:49:00,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash 113717990, now seen corresponding path program 1 times [2022-10-16 14:49:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:00,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46243662] [2022-10-16 14:49:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:00,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 16201 backedges. 0 proven. 12321 refuted. 0 times theorem prover too weak. 3880 trivial. 0 not checked. [2022-10-16 14:49:01,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:01,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46243662] [2022-10-16 14:49:01,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46243662] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:01,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706918415] [2022-10-16 14:49:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:01,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:01,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:01,089 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:49:01,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 14:49:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:01,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:49:01,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 16201 backedges. 0 proven. 12321 refuted. 0 times theorem prover too weak. 3880 trivial. 0 not checked. [2022-10-16 14:49:01,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:49:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 16201 backedges. 0 proven. 12321 refuted. 0 times theorem prover too weak. 3880 trivial. 0 not checked. [2022-10-16 14:49:02,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706918415] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:49:02,424 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:49:02,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:49:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601920529] [2022-10-16 14:49:02,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:49:02,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:49:02,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:02,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:49:02,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:49:02,427 INFO L87 Difference]: Start difference. First operand 19603 states and 21021 transitions. Second operand has 11 states, 10 states have (on average 18.4) internal successors, (184), 11 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 14:49:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:05,220 INFO L93 Difference]: Finished difference Result 23151 states and 24940 transitions. [2022-10-16 14:49:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:49:05,220 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 18.4) internal successors, (184), 11 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) Word has length 465 [2022-10-16 14:49:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:05,241 INFO L225 Difference]: With dead ends: 23151 [2022-10-16 14:49:05,241 INFO L226 Difference]: Without dead ends: 23149 [2022-10-16 14:49:05,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 924 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:49:05,247 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 160 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:05,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 311 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23149 states. [2022-10-16 14:49:07,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23149 to 13575. [2022-10-16 14:49:07,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13575 states, 13570 states have (on average 1.079587324981577) internal successors, (14650), 13574 states have internal predecessors, (14650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:07,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13575 states to 13575 states and 14650 transitions. [2022-10-16 14:49:07,195 INFO L78 Accepts]: Start accepts. Automaton has 13575 states and 14650 transitions. Word has length 465 [2022-10-16 14:49:07,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:07,195 INFO L495 AbstractCegarLoop]: Abstraction has 13575 states and 14650 transitions. [2022-10-16 14:49:07,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 18.4) internal successors, (184), 11 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 14:49:07,196 INFO L276 IsEmpty]: Start isEmpty. Operand 13575 states and 14650 transitions. [2022-10-16 14:49:07,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-10-16 14:49:07,205 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:07,205 INFO L195 NwaCegarLoop]: trace histogram [100, 100, 100, 100, 100, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 14:49:07,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 14:49:07,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 14:49:07,413 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:49:07,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:07,414 INFO L85 PathProgramCache]: Analyzing trace with hash 780041155, now seen corresponding path program 2 times [2022-10-16 14:49:07,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:07,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255076924] [2022-10-16 14:49:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:07,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 25400 backedges. 0 proven. 20550 refuted. 0 times theorem prover too weak. 4850 trivial. 0 not checked. [2022-10-16 14:49:08,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:08,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255076924] [2022-10-16 14:49:08,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255076924] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:08,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728310976] [2022-10-16 14:49:08,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:49:08,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:08,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:08,267 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:49:08,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 14:49:08,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:49:08,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:49:08,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:49:08,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 25400 backedges. 0 proven. 20550 refuted. 0 times theorem prover too weak. 4850 trivial. 0 not checked. [2022-10-16 14:49:09,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:49:10,118 INFO L134 CoverageAnalysis]: Checked inductivity of 25400 backedges. 0 proven. 20550 refuted. 0 times theorem prover too weak. 4850 trivial. 0 not checked. [2022-10-16 14:49:10,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728310976] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:49:10,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:49:10,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:49:10,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114006010] [2022-10-16 14:49:10,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:49:10,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:49:10,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:10,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:49:10,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:49:10,120 INFO L87 Difference]: Start difference. First operand 13575 states and 14650 transitions. Second operand has 24 states, 23 states have (on average 10.173913043478262) internal successors, (234), 24 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:12,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:12,766 INFO L93 Difference]: Finished difference Result 20666 states and 22397 transitions. [2022-10-16 14:49:12,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:49:12,767 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 10.173913043478262) internal successors, (234), 24 states have internal predecessors, (234), 0 states have call successors, (0), 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 584 [2022-10-16 14:49:12,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:12,784 INFO L225 Difference]: With dead ends: 20666 [2022-10-16 14:49:12,784 INFO L226 Difference]: Without dead ends: 20665 [2022-10-16 14:49:12,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1155 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:49:12,788 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 304 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:12,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 548 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20665 states. [2022-10-16 14:49:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20665 to 20618. [2022-10-16 14:49:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20618 states, 20613 states have (on average 1.0844612623101926) internal successors, (22354), 20617 states have internal predecessors, (22354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:15,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20618 states to 20618 states and 22354 transitions. [2022-10-16 14:49:15,398 INFO L78 Accepts]: Start accepts. Automaton has 20618 states and 22354 transitions. Word has length 584 [2022-10-16 14:49:15,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:15,399 INFO L495 AbstractCegarLoop]: Abstraction has 20618 states and 22354 transitions. [2022-10-16 14:49:15,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 10.173913043478262) internal successors, (234), 24 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:15,399 INFO L276 IsEmpty]: Start isEmpty. Operand 20618 states and 22354 transitions. [2022-10-16 14:49:15,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2022-10-16 14:49:15,409 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:15,409 INFO L195 NwaCegarLoop]: trace histogram [120, 120, 120, 120, 107, 13, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:15,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 14:49:15,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:15,610 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:49:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:15,611 INFO L85 PathProgramCache]: Analyzing trace with hash 352622280, now seen corresponding path program 1 times [2022-10-16 14:49:15,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:15,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860670065] [2022-10-16 14:49:15,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:15,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 36595 backedges. 0 proven. 30775 refuted. 0 times theorem prover too weak. 5820 trivial. 0 not checked. [2022-10-16 14:49:16,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:16,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860670065] [2022-10-16 14:49:16,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860670065] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:16,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579313375] [2022-10-16 14:49:16,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:16,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:16,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:16,227 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:49:16,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 14:49:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:16,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:49:16,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 36595 backedges. 0 proven. 30775 refuted. 0 times theorem prover too weak. 5820 trivial. 0 not checked. [2022-10-16 14:49:17,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:49:18,282 INFO L134 CoverageAnalysis]: Checked inductivity of 36595 backedges. 0 proven. 30775 refuted. 0 times theorem prover too weak. 5820 trivial. 0 not checked. [2022-10-16 14:49:18,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579313375] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:49:18,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:49:18,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-10-16 14:49:18,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251259614] [2022-10-16 14:49:18,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:49:18,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:49:18,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:18,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:49:18,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:49:18,285 INFO L87 Difference]: Start difference. First operand 20618 states and 22354 transitions. Second operand has 15 states, 14 states have (on average 17.571428571428573) internal successors, (246), 15 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:26,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:26,717 INFO L93 Difference]: Finished difference Result 74044 states and 80328 transitions. [2022-10-16 14:49:26,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:49:26,717 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 17.571428571428573) internal successors, (246), 15 states have internal predecessors, (246), 0 states have call successors, (0), 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 687 [2022-10-16 14:49:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:26,788 INFO L225 Difference]: With dead ends: 74044 [2022-10-16 14:49:26,788 INFO L226 Difference]: Without dead ends: 74042 [2022-10-16 14:49:26,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1379 GetRequests, 1366 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:49:26,801 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 352 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:26,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 432 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74042 states.