/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-lit/bhmr2007.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:29:06,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:29:06,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:29:06,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:29:06,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:29:06,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:29:06,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:29:06,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:29:06,975 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:29:06,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:29:06,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:29:06,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:29:06,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:29:06,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:29:06,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:29:06,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:29:06,979 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:29:06,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:29:06,980 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:29:06,980 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:29:06,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:29:06,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:29:06,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:29:06,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:29:06,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:29:06,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:29:06,981 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:29:06,982 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:29:06,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:29:06,982 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:29:06,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:29:06,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:29:06,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:29:06,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:29:06,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:29:06,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:29:06,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:29:06,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:29:06,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:29:06,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:29:06,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:29:06,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:29:07,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:29:07,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:29:07,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:29:07,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:29:07,379 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:29:07,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/bhmr2007.i [2022-10-16 14:29:07,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9095249e/cb1b74c644db4ec9aa1dbb8569519628/FLAGc6c00325d [2022-10-16 14:29:08,144 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:29:08,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bhmr2007.i [2022-10-16 14:29:08,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9095249e/cb1b74c644db4ec9aa1dbb8569519628/FLAGc6c00325d [2022-10-16 14:29:08,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9095249e/cb1b74c644db4ec9aa1dbb8569519628 [2022-10-16 14:29:08,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:29:08,529 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:29:08,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:29:08,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:29:08,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:29:08,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1717cab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08, skipping insertion in model container [2022-10-16 14:29:08,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:29:08,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:29:08,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bhmr2007.i[895,908] [2022-10-16 14:29:08,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:29:08,747 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:29:08,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bhmr2007.i[895,908] [2022-10-16 14:29:08,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:29:08,781 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:29:08,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08 WrapperNode [2022-10-16 14:29:08,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:29:08,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:29:08,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:29:08,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:29:08,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,820 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-10-16 14:29:08,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:29:08,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:29:08,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:29:08,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:29:08,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,841 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:29:08,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:29:08,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:29:08,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:29:08,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (1/1) ... [2022-10-16 14:29:08,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:29:08,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:08,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:29:08,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:29:08,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:29:08,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:29:08,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:29:08,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:29:09,011 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:29:09,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:29:09,184 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:29:09,192 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:29:09,192 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:29:09,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:09 BoogieIcfgContainer [2022-10-16 14:29:09,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:29:09,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:29:09,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:29:09,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:29:09,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:08" (1/3) ... [2022-10-16 14:29:09,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4656e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:09, skipping insertion in model container [2022-10-16 14:29:09,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:08" (2/3) ... [2022-10-16 14:29:09,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4656e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:09, skipping insertion in model container [2022-10-16 14:29:09,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:09" (3/3) ... [2022-10-16 14:29:09,205 INFO L112 eAbstractionObserver]: Analyzing ICFG bhmr2007.i [2022-10-16 14:29:09,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:29:09,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 14:29:09,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:29:09,337 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;@7b23a683, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:29:09,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 14:29:09,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:09,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:29:09,353 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:09,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:29:09,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:09,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:09,361 INFO L85 PathProgramCache]: Analyzing trace with hash 28696870, now seen corresponding path program 1 times [2022-10-16 14:29:09,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:09,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183181873] [2022-10-16 14:29:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:09,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:09,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:09,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:09,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183181873] [2022-10-16 14:29:09,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183181873] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:09,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:09,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:09,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952898792] [2022-10-16 14:29:09,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:09,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 14:29:09,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 14:29:09,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:29:09,567 INFO L87 Difference]: Start difference. First operand has 39 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:09,587 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-10-16 14:29:09,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 14:29:09,589 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:29:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:09,599 INFO L225 Difference]: With dead ends: 53 [2022-10-16 14:29:09,599 INFO L226 Difference]: Without dead ends: 33 [2022-10-16 14:29:09,603 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 14:29:09,608 INFO L413 NwaCegarLoop]: 41 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, 41 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 14:29:09,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-16 14:29:09,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-16 14:29:09,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:09,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-10-16 14:29:09,647 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 5 [2022-10-16 14:29:09,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:09,648 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-10-16 14:29:09,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-10-16 14:29:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:29:09,649 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:09,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:29:09,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:29:09,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:09,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:09,651 INFO L85 PathProgramCache]: Analyzing trace with hash 28695940, now seen corresponding path program 1 times [2022-10-16 14:29:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:09,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362850177] [2022-10-16 14:29:09,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:09,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:09,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362850177] [2022-10-16 14:29:09,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362850177] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:09,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:09,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:09,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952533076] [2022-10-16 14:29:09,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:09,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:09,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:09,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:09,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:09,752 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:09,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:09,819 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2022-10-16 14:29:09,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:09,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:29:09,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:09,822 INFO L225 Difference]: With dead ends: 51 [2022-10-16 14:29:09,822 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 14:29:09,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:09,825 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:09,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 40 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:09,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 14:29:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2022-10-16 14:29:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 40 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 14:29:09,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2022-10-16 14:29:09,844 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 5 [2022-10-16 14:29:09,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:09,844 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2022-10-16 14:29:09,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:09,848 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-10-16 14:29:09,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:29:09,848 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:09,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:09,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:29:09,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:09,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1806997094, now seen corresponding path program 1 times [2022-10-16 14:29:09,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:09,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211052166] [2022-10-16 14:29:09,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:09,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:09,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:09,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211052166] [2022-10-16 14:29:09,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211052166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:09,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:09,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:09,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952234660] [2022-10-16 14:29:09,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:09,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:09,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:09,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:09,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:09,960 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:09,987 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-10-16 14:29:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:09,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 14:29:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:09,996 INFO L225 Difference]: With dead ends: 41 [2022-10-16 14:29:09,996 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 14:29:09,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:09,998 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:10,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 30 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 14:29:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-16 14:29:10,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-10-16 14:29:10,016 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 7 [2022-10-16 14:29:10,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:10,016 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-10-16 14:29:10,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-10-16 14:29:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:29:10,022 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:10,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:10,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:29:10,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:10,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash 183320239, now seen corresponding path program 1 times [2022-10-16 14:29:10,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:10,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348072038] [2022-10-16 14:29:10,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:10,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:10,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348072038] [2022-10-16 14:29:10,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348072038] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:10,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:10,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:10,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47694505] [2022-10-16 14:29:10,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:10,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:10,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:10,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:10,150 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:10,186 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2022-10-16 14:29:10,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:10,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 14:29:10,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:10,189 INFO L225 Difference]: With dead ends: 51 [2022-10-16 14:29:10,189 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 14:29:10,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:10,192 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:10,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 46 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:10,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 14:29:10,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2022-10-16 14:29:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 43 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2022-10-16 14:29:10,201 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 8 [2022-10-16 14:29:10,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:10,202 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2022-10-16 14:29:10,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,202 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2022-10-16 14:29:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:29:10,203 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:10,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:10,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:29:10,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:10,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash 182335149, now seen corresponding path program 1 times [2022-10-16 14:29:10,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:10,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173866382] [2022-10-16 14:29:10,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:10,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:10,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:10,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:10,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173866382] [2022-10-16 14:29:10,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173866382] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:10,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:10,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:10,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903392654] [2022-10-16 14:29:10,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:10,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:10,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:10,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:10,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:10,264 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:10,282 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2022-10-16 14:29:10,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:10,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 14:29:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:10,284 INFO L225 Difference]: With dead ends: 44 [2022-10-16 14:29:10,284 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 14:29:10,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:10,287 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 25 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:10,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 30 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 14:29:10,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-16 14:29:10,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-10-16 14:29:10,295 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 8 [2022-10-16 14:29:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:10,296 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-10-16 14:29:10,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-10-16 14:29:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:29:10,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:10,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:10,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:29:10,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:10,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:10,298 INFO L85 PathProgramCache]: Analyzing trace with hash 77092380, now seen corresponding path program 1 times [2022-10-16 14:29:10,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:10,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651046537] [2022-10-16 14:29:10,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:10,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:10,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:10,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651046537] [2022-10-16 14:29:10,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651046537] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:10,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:10,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:10,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870815864] [2022-10-16 14:29:10,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:10,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:10,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:10,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:10,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:10,351 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:10,369 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2022-10-16 14:29:10,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:10,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:29:10,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:10,371 INFO L225 Difference]: With dead ends: 43 [2022-10-16 14:29:10,371 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 14:29:10,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:10,373 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 49 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 14:29:10,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 49 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:10,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 14:29:10,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-10-16 14:29:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2022-10-16 14:29:10,381 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 10 [2022-10-16 14:29:10,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:10,382 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2022-10-16 14:29:10,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2022-10-16 14:29:10,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:29:10,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:10,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:10,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:29:10,387 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:10,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:10,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1148340147, now seen corresponding path program 1 times [2022-10-16 14:29:10,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:10,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880673887] [2022-10-16 14:29:10,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:10,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:10,594 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 14:29:10,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:10,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880673887] [2022-10-16 14:29:10,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880673887] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:10,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84106900] [2022-10-16 14:29:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:10,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:10,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:10,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:10,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:29:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:10,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:29:10,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:10,803 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 14:29:10,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:10,866 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 14:29:10,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84106900] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:10,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:10,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:29:10,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427336275] [2022-10-16 14:29:10,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:10,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:29:10,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:10,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:29:10,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:29:10,870 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:11,087 INFO L93 Difference]: Finished difference Result 120 states and 132 transitions. [2022-10-16 14:29:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:29:11,089 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:29:11,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:11,091 INFO L225 Difference]: With dead ends: 120 [2022-10-16 14:29:11,091 INFO L226 Difference]: Without dead ends: 117 [2022-10-16 14:29:11,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:29:11,099 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 109 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:11,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 72 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:29:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-16 14:29:11,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 60. [2022-10-16 14:29:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.5833333333333333) internal successors, (76), 59 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 76 transitions. [2022-10-16 14:29:11,125 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 76 transitions. Word has length 13 [2022-10-16 14:29:11,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:11,125 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 76 transitions. [2022-10-16 14:29:11,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:11,126 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 76 transitions. [2022-10-16 14:29:11,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:29:11,127 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:11,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:11,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:11,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:11,342 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:11,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1238806110, now seen corresponding path program 1 times [2022-10-16 14:29:11,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:11,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361586936] [2022-10-16 14:29:11,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:11,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:11,461 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 14:29:11,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:11,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361586936] [2022-10-16 14:29:11,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361586936] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:11,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686404251] [2022-10-16 14:29:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:11,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:11,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:11,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:11,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:29:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:11,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:29:11,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:11,606 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 14:29:11,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:11,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686404251] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:11,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:11,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-10-16 14:29:11,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291017439] [2022-10-16 14:29:11,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:11,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:29:11,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:11,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:29:11,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:29:11,611 INFO L87 Difference]: Start difference. First operand 60 states and 76 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:11,707 INFO L93 Difference]: Finished difference Result 83 states and 110 transitions. [2022-10-16 14:29:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:29:11,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 14:29:11,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:11,712 INFO L225 Difference]: With dead ends: 83 [2022-10-16 14:29:11,712 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 14:29:11,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:29:11,717 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 67 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:11,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 27 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 14:29:11,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 53. [2022-10-16 14:29:11,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 52 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 14:29:11,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2022-10-16 14:29:11,737 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 14 [2022-10-16 14:29:11,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:11,738 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2022-10-16 14:29:11,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:11,738 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2022-10-16 14:29:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:29:11,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:11,741 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:11,778 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 14:29:11,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 14:29:11,942 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:11,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:11,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1015979610, now seen corresponding path program 1 times [2022-10-16 14:29:11,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:11,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532533120] [2022-10-16 14:29:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:11,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:11,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:11,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:11,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532533120] [2022-10-16 14:29:11,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532533120] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:11,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392634828] [2022-10-16 14:29:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:11,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:11,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:12,007 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:12,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:29:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:12,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:12,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:12,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:12,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392634828] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:12,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:12,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 14:29:12,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485234447] [2022-10-16 14:29:12,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:12,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:29:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:12,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:29:12,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:12,139 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:12,194 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2022-10-16 14:29:12,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:29:12,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 14:29:12,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:12,196 INFO L225 Difference]: With dead ends: 90 [2022-10-16 14:29:12,196 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 14:29:12,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:12,198 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 43 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:12,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 93 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 14:29:12,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 73. [2022-10-16 14:29:12,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 66 states have (on average 1.393939393939394) internal successors, (92), 72 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:12,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2022-10-16 14:29:12,208 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 14 [2022-10-16 14:29:12,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:12,208 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-10-16 14:29:12,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:12,209 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2022-10-16 14:29:12,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:29:12,210 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:12,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:12,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:12,423 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 14:29:12,424 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:12,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash -785743034, now seen corresponding path program 1 times [2022-10-16 14:29:12,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:12,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692818610] [2022-10-16 14:29:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:12,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:12,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:12,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692818610] [2022-10-16 14:29:12,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692818610] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:12,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875838211] [2022-10-16 14:29:12,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:12,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:12,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:12,475 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:12,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:29:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:12,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:12,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:12,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:12,618 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:12,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875838211] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:12,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:12,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 14:29:12,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882852256] [2022-10-16 14:29:12,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:12,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:29:12,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:12,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:29:12,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:12,622 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 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 14:29:12,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:12,664 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2022-10-16 14:29:12,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:29:12,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 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 16 [2022-10-16 14:29:12,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:12,666 INFO L225 Difference]: With dead ends: 90 [2022-10-16 14:29:12,666 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 14:29:12,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:12,668 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 50 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:12,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 71 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:12,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 14:29:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 78. [2022-10-16 14:29:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 77 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 93 transitions. [2022-10-16 14:29:12,678 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 93 transitions. Word has length 16 [2022-10-16 14:29:12,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:12,678 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 93 transitions. [2022-10-16 14:29:12,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 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 14:29:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2022-10-16 14:29:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:29:12,679 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:12,680 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:12,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:12,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:12,895 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:12,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:12,896 INFO L85 PathProgramCache]: Analyzing trace with hash 815190259, now seen corresponding path program 1 times [2022-10-16 14:29:12,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:12,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880200833] [2022-10-16 14:29:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:12,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:12,948 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 14:29:12,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:12,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880200833] [2022-10-16 14:29:12,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880200833] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:12,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369701869] [2022-10-16 14:29:12,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:12,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:12,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:12,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:12,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:29:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:12,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:12,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:13,020 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 14:29:13,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:13,064 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 14:29:13,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369701869] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:13,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:13,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 14:29:13,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917576910] [2022-10-16 14:29:13,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:13,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:29:13,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:13,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:29:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:13,067 INFO L87 Difference]: Start difference. First operand 78 states and 93 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:13,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:13,107 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2022-10-16 14:29:13,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:29:13,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 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 18 [2022-10-16 14:29:13,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:13,109 INFO L225 Difference]: With dead ends: 87 [2022-10-16 14:29:13,109 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 14:29:13,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:13,110 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 47 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:13,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 73 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:13,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 14:29:13,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2022-10-16 14:29:13,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 80 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:13,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2022-10-16 14:29:13,123 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 18 [2022-10-16 14:29:13,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:13,123 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2022-10-16 14:29:13,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:13,124 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2022-10-16 14:29:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:29:13,125 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:13,125 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:29:13,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:13,339 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,SelfDestructingSolverStorable10 [2022-10-16 14:29:13,340 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:13,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash -498905675, now seen corresponding path program 1 times [2022-10-16 14:29:13,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:13,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882192779] [2022-10-16 14:29:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:13,396 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:13,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:13,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882192779] [2022-10-16 14:29:13,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882192779] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:13,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144652738] [2022-10-16 14:29:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:13,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:13,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:13,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:13,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:29:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:13,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:13,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:13,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:13,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144652738] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:13,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:13,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 14:29:13,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252225260] [2022-10-16 14:29:13,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:13,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:13,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:13,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:13,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:29:13,508 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:13,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:13,525 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2022-10-16 14:29:13,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:13,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 14:29:13,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:13,526 INFO L225 Difference]: With dead ends: 81 [2022-10-16 14:29:13,527 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 14:29:13,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 14:29:13,528 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 41 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 14:29:13,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 41 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:13,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 14:29:13,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-10-16 14:29:13,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 79 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2022-10-16 14:29:13,537 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 19 [2022-10-16 14:29:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:13,538 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2022-10-16 14:29:13,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2022-10-16 14:29:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 14:29:13,539 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:13,539 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:29:13,576 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 14:29:13,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:13,753 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:13,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:13,754 INFO L85 PathProgramCache]: Analyzing trace with hash -144039638, now seen corresponding path program 1 times [2022-10-16 14:29:13,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:13,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742515395] [2022-10-16 14:29:13,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:13,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:13,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742515395] [2022-10-16 14:29:13,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742515395] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:13,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164794792] [2022-10-16 14:29:13,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:13,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:13,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:13,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:13,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:29:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:13,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:29:13,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:14,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:14,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164794792] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:14,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:14,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-10-16 14:29:14,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228345077] [2022-10-16 14:29:14,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:14,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 14:29:14,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:14,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 14:29:14,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=140, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:29:14,134 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 17 states, 16 states have (on average 3.8125) internal successors, (61), 17 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:14,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:14,307 INFO L93 Difference]: Finished difference Result 168 states and 189 transitions. [2022-10-16 14:29:14,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:29:14,307 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 17 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 14:29:14,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:14,309 INFO L225 Difference]: With dead ends: 168 [2022-10-16 14:29:14,309 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 14:29:14,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=158, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:29:14,310 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 175 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:14,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 96 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:14,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 14:29:14,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 116. [2022-10-16 14:29:14,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 110 states have (on average 1.1636363636363636) internal successors, (128), 115 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:14,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 128 transitions. [2022-10-16 14:29:14,322 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 128 transitions. Word has length 21 [2022-10-16 14:29:14,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:14,322 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 128 transitions. [2022-10-16 14:29:14,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 17 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:14,322 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2022-10-16 14:29:14,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 14:29:14,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:14,324 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2022-10-16 14:29:14,363 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 14:29:14,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:14,540 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:14,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:14,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1448246930, now seen corresponding path program 1 times [2022-10-16 14:29:14,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:14,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134193474] [2022-10-16 14:29:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:14,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:14,617 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:14,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:14,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134193474] [2022-10-16 14:29:14,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134193474] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:14,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978165442] [2022-10-16 14:29:14,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:14,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:14,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:14,619 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 14:29:14,628 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 14:29:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:14,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:29:14,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:14,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:14,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978165442] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:14,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:14,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:29:14,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795704500] [2022-10-16 14:29:14,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:14,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:29:14,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:14,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:29:14,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:29:14,783 INFO L87 Difference]: Start difference. First operand 116 states and 128 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 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 14:29:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:14,849 INFO L93 Difference]: Finished difference Result 224 states and 252 transitions. [2022-10-16 14:29:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:29:14,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 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) Word has length 30 [2022-10-16 14:29:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:14,851 INFO L225 Difference]: With dead ends: 224 [2022-10-16 14:29:14,851 INFO L226 Difference]: Without dead ends: 222 [2022-10-16 14:29:14,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 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 14:29:14,852 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 98 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:14,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 112 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:14,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-10-16 14:29:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 201. [2022-10-16 14:29:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.1794871794871795) internal successors, (230), 200 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 230 transitions. [2022-10-16 14:29:14,870 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 230 transitions. Word has length 30 [2022-10-16 14:29:14,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:14,871 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 230 transitions. [2022-10-16 14:29:14,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 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 14:29:14,871 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 230 transitions. [2022-10-16 14:29:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 14:29:14,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:14,881 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 14:29:14,924 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 14:29:15,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 14:29:15,097 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:15,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:15,098 INFO L85 PathProgramCache]: Analyzing trace with hash -683658584, now seen corresponding path program 2 times [2022-10-16 14:29:15,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:15,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980462367] [2022-10-16 14:29:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:15,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:15,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:15,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980462367] [2022-10-16 14:29:15,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980462367] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:15,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938941949] [2022-10-16 14:29:15,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:15,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:15,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:15,280 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 14:29:15,292 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 14:29:15,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:15,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:15,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:29:15,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:15,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:15,712 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:15,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938941949] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:15,712 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:15,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-10-16 14:29:15,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774110667] [2022-10-16 14:29:15,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:15,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 14:29:15,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:15,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 14:29:15,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=428, Unknown=0, NotChecked=0, Total=812 [2022-10-16 14:29:15,715 INFO L87 Difference]: Start difference. First operand 201 states and 230 transitions. Second operand has 29 states, 28 states have (on average 3.892857142857143) internal successors, (109), 29 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:16,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:16,139 INFO L93 Difference]: Finished difference Result 466 states and 545 transitions. [2022-10-16 14:29:16,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 14:29:16,140 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.892857142857143) internal successors, (109), 29 states have internal predecessors, (109), 0 states have call successors, (0), 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 14:29:16,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:16,143 INFO L225 Difference]: With dead ends: 466 [2022-10-16 14:29:16,143 INFO L226 Difference]: Without dead ends: 455 [2022-10-16 14:29:16,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=618, Invalid=714, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 14:29:16,145 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 551 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:16,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 166 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:29:16,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-10-16 14:29:16,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 335. [2022-10-16 14:29:16,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 329 states have (on average 1.249240121580547) internal successors, (411), 334 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 411 transitions. [2022-10-16 14:29:16,167 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 411 transitions. Word has length 37 [2022-10-16 14:29:16,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:16,167 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 411 transitions. [2022-10-16 14:29:16,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.892857142857143) internal successors, (109), 29 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:16,168 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 411 transitions. [2022-10-16 14:29:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 14:29:16,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:16,169 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 14:29:16,208 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 14:29:16,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:29:16,386 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:16,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:16,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1131201921, now seen corresponding path program 2 times [2022-10-16 14:29:16,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:16,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725314373] [2022-10-16 14:29:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:16,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:16,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:16,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725314373] [2022-10-16 14:29:16,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725314373] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:16,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776392520] [2022-10-16 14:29:16,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:16,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:16,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:16,479 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 14:29:16,505 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 14:29:16,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:16,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:16,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:29:16,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:16,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:16,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776392520] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:16,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:16,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-10-16 14:29:16,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820501924] [2022-10-16 14:29:16,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:16,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:29:16,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:16,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:29:16,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:29:16,671 INFO L87 Difference]: Start difference. First operand 335 states and 411 transitions. Second operand has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:16,757 INFO L93 Difference]: Finished difference Result 526 states and 653 transitions. [2022-10-16 14:29:16,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:29:16,758 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 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 38 [2022-10-16 14:29:16,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:16,761 INFO L225 Difference]: With dead ends: 526 [2022-10-16 14:29:16,761 INFO L226 Difference]: Without dead ends: 524 [2022-10-16 14:29:16,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:29:16,763 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 143 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:16,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 144 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:16,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-10-16 14:29:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 314. [2022-10-16 14:29:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 308 states have (on average 1.2792207792207793) internal successors, (394), 313 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:16,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 394 transitions. [2022-10-16 14:29:16,783 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 394 transitions. Word has length 38 [2022-10-16 14:29:16,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:16,783 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 394 transitions. [2022-10-16 14:29:16,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:16,784 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 394 transitions. [2022-10-16 14:29:16,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 14:29:16,784 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:16,785 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 14:29:16,819 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 14:29:17,000 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,SelfDestructingSolverStorable15 [2022-10-16 14:29:17,001 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:17,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:17,002 INFO L85 PathProgramCache]: Analyzing trace with hash -136894709, now seen corresponding path program 2 times [2022-10-16 14:29:17,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:17,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279624343] [2022-10-16 14:29:17,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:17,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:17,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:17,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279624343] [2022-10-16 14:29:17,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279624343] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:17,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234732910] [2022-10-16 14:29:17,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:17,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:17,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:17,092 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 14:29:17,123 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 14:29:17,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:17,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:17,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:29:17,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:17,195 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:17,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:17,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234732910] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:17,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:17,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-10-16 14:29:17,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104496467] [2022-10-16 14:29:17,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:17,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:29:17,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:17,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:29:17,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:29:17,275 INFO L87 Difference]: Start difference. First operand 314 states and 394 transitions. Second operand has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:17,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:17,350 INFO L93 Difference]: Finished difference Result 336 states and 407 transitions. [2022-10-16 14:29:17,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:29:17,351 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 14:29:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:17,353 INFO L225 Difference]: With dead ends: 336 [2022-10-16 14:29:17,353 INFO L226 Difference]: Without dead ends: 334 [2022-10-16 14:29:17,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:29:17,355 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 129 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:17,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 133 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:17,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-10-16 14:29:17,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 319. [2022-10-16 14:29:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 313 states have (on average 1.1980830670926517) internal successors, (375), 318 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 375 transitions. [2022-10-16 14:29:17,374 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 375 transitions. Word has length 40 [2022-10-16 14:29:17,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:17,374 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 375 transitions. [2022-10-16 14:29:17,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:17,375 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 375 transitions. [2022-10-16 14:29:17,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 14:29:17,375 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:17,375 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 14:29:17,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:17,590 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,SelfDestructingSolverStorable16 [2022-10-16 14:29:17,591 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:17,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:17,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1588172664, now seen corresponding path program 2 times [2022-10-16 14:29:17,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:17,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137555967] [2022-10-16 14:29:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:17,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:17,646 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 14:29:17,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:17,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137555967] [2022-10-16 14:29:17,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137555967] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:17,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403430822] [2022-10-16 14:29:17,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:17,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:17,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:17,648 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 14:29:17,682 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 14:29:17,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:29:17,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:17,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:17,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 14:29:17,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 14:29:17,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403430822] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:17,807 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:17,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-16 14:29:17,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145916379] [2022-10-16 14:29:17,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:17,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:29:17,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:17,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:29:17,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:17,809 INFO L87 Difference]: Start difference. First operand 319 states and 375 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:17,841 INFO L93 Difference]: Finished difference Result 319 states and 375 transitions. [2022-10-16 14:29:17,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:29:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 14:29:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:17,843 INFO L225 Difference]: With dead ends: 319 [2022-10-16 14:29:17,843 INFO L226 Difference]: Without dead ends: 318 [2022-10-16 14:29:17,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:29:17,844 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:17,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 21 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:17,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-10-16 14:29:17,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-10-16 14:29:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 313 states have (on average 1.134185303514377) internal successors, (355), 317 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 355 transitions. [2022-10-16 14:29:17,863 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 355 transitions. Word has length 42 [2022-10-16 14:29:17,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:17,863 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 355 transitions. [2022-10-16 14:29:17,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:17,864 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 355 transitions. [2022-10-16 14:29:17,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 14:29:17,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:17,865 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:29:17,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:18,079 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,SelfDestructingSolverStorable17 [2022-10-16 14:29:18,080 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:18,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:18,081 INFO L85 PathProgramCache]: Analyzing trace with hash 272352610, now seen corresponding path program 1 times [2022-10-16 14:29:18,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:18,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515457746] [2022-10-16 14:29:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:18,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:18,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:18,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515457746] [2022-10-16 14:29:18,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515457746] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:18,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585357989] [2022-10-16 14:29:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:18,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:18,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:18,359 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 14:29:18,378 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 14:29:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:18,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:29:18,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:18,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:19,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585357989] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:19,023 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:19,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2022-10-16 14:29:19,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285702408] [2022-10-16 14:29:19,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:19,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-16 14:29:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-16 14:29:19,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=764, Invalid=876, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 14:29:19,026 INFO L87 Difference]: Start difference. First operand 318 states and 355 transitions. Second operand has 41 states, 40 states have (on average 3.925) internal successors, (157), 41 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:19,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:19,854 INFO L93 Difference]: Finished difference Result 897 states and 1008 transitions. [2022-10-16 14:29:19,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 14:29:19,854 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 3.925) internal successors, (157), 41 states have internal predecessors, (157), 0 states have call successors, (0), 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 53 [2022-10-16 14:29:19,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:19,859 INFO L225 Difference]: With dead ends: 897 [2022-10-16 14:29:19,859 INFO L226 Difference]: Without dead ends: 883 [2022-10-16 14:29:19,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1483, Invalid=1823, Unknown=0, NotChecked=0, Total=3306 [2022-10-16 14:29:19,862 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 525 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:19,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 330 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:29:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-10-16 14:29:19,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 472. [2022-10-16 14:29:19,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 467 states have (on average 1.1349036402569592) internal successors, (530), 471 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 14:29:19,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 530 transitions. [2022-10-16 14:29:19,912 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 530 transitions. Word has length 53 [2022-10-16 14:29:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:19,912 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 530 transitions. [2022-10-16 14:29:19,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 3.925) internal successors, (157), 41 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:19,913 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 530 transitions. [2022-10-16 14:29:19,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 14:29:19,914 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:19,915 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2022-10-16 14:29:19,953 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 14:29:20,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:20,130 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:20,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:20,131 INFO L85 PathProgramCache]: Analyzing trace with hash 180153907, now seen corresponding path program 2 times [2022-10-16 14:29:20,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:20,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509795138] [2022-10-16 14:29:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:20,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:20,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:20,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509795138] [2022-10-16 14:29:20,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509795138] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:20,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816204112] [2022-10-16 14:29:20,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:20,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:20,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:20,629 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 14:29:20,641 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 14:29:20,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:20,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:20,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 14:29:20,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:21,175 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:21,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:21,877 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:21,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816204112] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:21,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:21,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2022-10-16 14:29:21,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426760563] [2022-10-16 14:29:21,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:21,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-10-16 14:29:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:21,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-10-16 14:29:21,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1574, Invalid=1848, Unknown=0, NotChecked=0, Total=3422 [2022-10-16 14:29:21,882 INFO L87 Difference]: Start difference. First operand 472 states and 530 transitions. Second operand has 59 states, 58 states have (on average 3.9482758620689653) internal successors, (229), 59 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 14:29:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:24,275 INFO L93 Difference]: Finished difference Result 1950 states and 2186 transitions. [2022-10-16 14:29:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-10-16 14:29:24,277 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 3.9482758620689653) internal successors, (229), 59 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 77 [2022-10-16 14:29:24,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:24,291 INFO L225 Difference]: With dead ends: 1950 [2022-10-16 14:29:24,291 INFO L226 Difference]: Without dead ends: 1928 [2022-10-16 14:29:24,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4062 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=5246, Invalid=6744, Unknown=0, NotChecked=0, Total=11990 [2022-10-16 14:29:24,301 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1768 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1768 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:24,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1768 Valid, 337 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:29:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-10-16 14:29:24,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 551. [2022-10-16 14:29:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.1923076923076923) internal successors, (651), 550 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 651 transitions. [2022-10-16 14:29:24,354 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 651 transitions. Word has length 77 [2022-10-16 14:29:24,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:24,355 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 651 transitions. [2022-10-16 14:29:24,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 3.9482758620689653) internal successors, (229), 59 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 14:29:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 651 transitions. [2022-10-16 14:29:24,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 14:29:24,357 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:24,357 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1] [2022-10-16 14:29:24,395 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 14:29:24,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:24,573 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:24,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1264012700, now seen corresponding path program 2 times [2022-10-16 14:29:24,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:24,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8780678] [2022-10-16 14:29:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:24,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:24,798 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:24,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:24,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8780678] [2022-10-16 14:29:24,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8780678] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:24,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607863347] [2022-10-16 14:29:24,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:24,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:24,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:24,801 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 14:29:24,821 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 14:29:24,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:24,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:24,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:29:24,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:24,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:25,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607863347] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:25,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:25,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-10-16 14:29:25,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239443674] [2022-10-16 14:29:25,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:25,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 14:29:25,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:25,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 14:29:25,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:29:25,171 INFO L87 Difference]: Start difference. First operand 551 states and 651 transitions. Second operand has 23 states, 22 states have (on average 7.318181818181818) internal successors, (161), 23 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:25,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:25,437 INFO L93 Difference]: Finished difference Result 2556 states and 3118 transitions. [2022-10-16 14:29:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 14:29:25,438 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.318181818181818) internal successors, (161), 23 states have internal predecessors, (161), 0 states have call successors, (0), 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 78 [2022-10-16 14:29:25,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:25,450 INFO L225 Difference]: With dead ends: 2556 [2022-10-16 14:29:25,450 INFO L226 Difference]: Without dead ends: 2554 [2022-10-16 14:29:25,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:29:25,452 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 343 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:25,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 229 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:25,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2022-10-16 14:29:25,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2497. [2022-10-16 14:29:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2492 states have (on average 1.1693418940609952) internal successors, (2914), 2496 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:25,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 2914 transitions. [2022-10-16 14:29:25,618 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 2914 transitions. Word has length 78 [2022-10-16 14:29:25,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:25,618 INFO L495 AbstractCegarLoop]: Abstraction has 2497 states and 2914 transitions. [2022-10-16 14:29:25,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.318181818181818) internal successors, (161), 23 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:25,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 2914 transitions. [2022-10-16 14:29:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 14:29:25,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:25,623 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2022-10-16 14:29:25,650 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 14:29:25,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:25,839 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:25,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:25,841 INFO L85 PathProgramCache]: Analyzing trace with hash 111953103, now seen corresponding path program 3 times [2022-10-16 14:29:25,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:25,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921267144] [2022-10-16 14:29:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:25,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:26,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:26,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921267144] [2022-10-16 14:29:26,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921267144] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:26,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044635011] [2022-10-16 14:29:26,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:29:26,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:26,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:26,078 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 14:29:26,082 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 14:29:26,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 14:29:26,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:26,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:29:26,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:26,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:26,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044635011] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:26,493 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:26,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-10-16 14:29:26,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847910472] [2022-10-16 14:29:26,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:26,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:29:26,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:29:26,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:29:26,496 INFO L87 Difference]: Start difference. First operand 2497 states and 2914 transitions. Second operand has 25 states, 24 states have (on average 7.375) internal successors, (177), 25 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:26,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:26,869 INFO L93 Difference]: Finished difference Result 4316 states and 5188 transitions. [2022-10-16 14:29:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 14:29:26,873 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 7.375) internal successors, (177), 25 states have internal predecessors, (177), 0 states have call successors, (0), 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 86 [2022-10-16 14:29:26,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:26,892 INFO L225 Difference]: With dead ends: 4316 [2022-10-16 14:29:26,892 INFO L226 Difference]: Without dead ends: 4314 [2022-10-16 14:29:26,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:29:26,894 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 320 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:26,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 275 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4314 states. [2022-10-16 14:29:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4314 to 999. [2022-10-16 14:29:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 994 states have (on average 1.199195171026157) internal successors, (1192), 998 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:26,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1192 transitions. [2022-10-16 14:29:26,979 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1192 transitions. Word has length 86 [2022-10-16 14:29:26,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:26,979 INFO L495 AbstractCegarLoop]: Abstraction has 999 states and 1192 transitions. [2022-10-16 14:29:26,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 7.375) internal successors, (177), 25 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:26,980 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1192 transitions. [2022-10-16 14:29:26,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 14:29:26,981 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:26,981 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-10-16 14:29:27,017 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 14:29:27,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 14:29:27,196 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:27,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:27,197 INFO L85 PathProgramCache]: Analyzing trace with hash 894710165, now seen corresponding path program 3 times [2022-10-16 14:29:27,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:27,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758532102] [2022-10-16 14:29:27,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:27,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:27,408 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:27,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:27,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758532102] [2022-10-16 14:29:27,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758532102] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:27,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530263294] [2022-10-16 14:29:27,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:29:27,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:27,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:27,411 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 14:29:27,418 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 14:29:27,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 14:29:27,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:27,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:29:27,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:27,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:27,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530263294] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:27,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:27,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-10-16 14:29:27,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015038529] [2022-10-16 14:29:27,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:27,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:29:27,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:27,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:29:27,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:29:27,817 INFO L87 Difference]: Start difference. First operand 999 states and 1192 transitions. Second operand has 25 states, 24 states have (on average 7.625) internal successors, (183), 25 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:28,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:28,017 INFO L93 Difference]: Finished difference Result 1024 states and 1209 transitions. [2022-10-16 14:29:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 14:29:28,017 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 7.625) internal successors, (183), 25 states have internal predecessors, (183), 0 states have call successors, (0), 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 88 [2022-10-16 14:29:28,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:28,022 INFO L225 Difference]: With dead ends: 1024 [2022-10-16 14:29:28,022 INFO L226 Difference]: Without dead ends: 1022 [2022-10-16 14:29:28,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:29:28,023 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 258 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:28,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 255 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:28,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-10-16 14:29:28,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1004. [2022-10-16 14:29:28,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 999 states have (on average 1.1211211211211212) internal successors, (1120), 1003 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1120 transitions. [2022-10-16 14:29:28,085 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1120 transitions. Word has length 88 [2022-10-16 14:29:28,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:28,086 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1120 transitions. [2022-10-16 14:29:28,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 7.625) internal successors, (183), 25 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1120 transitions. [2022-10-16 14:29:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 14:29:28,088 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:28,089 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 14:29:28,126 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 14:29:28,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:28,303 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:28,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash -613305942, now seen corresponding path program 3 times [2022-10-16 14:29:28,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:28,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700161529] [2022-10-16 14:29:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:28,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 0 proven. 582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:29,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:29,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700161529] [2022-10-16 14:29:29,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700161529] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:29,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919717166] [2022-10-16 14:29:29,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:29:29,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:29,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:29,150 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 14:29:29,152 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 14:29:29,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-10-16 14:29:29,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:29,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 14:29:29,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:30,068 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 0 proven. 582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:30,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 0 proven. 582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:31,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919717166] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:31,459 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:31,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 88 [2022-10-16 14:29:31,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68286014] [2022-10-16 14:29:31,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:31,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-10-16 14:29:31,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:31,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-10-16 14:29:31,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3564, Invalid=4268, Unknown=0, NotChecked=0, Total=7832 [2022-10-16 14:29:31,467 INFO L87 Difference]: Start difference. First operand 1004 states and 1120 transitions. Second operand has 89 states, 88 states have (on average 3.965909090909091) internal successors, (349), 89 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:38,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:38,903 INFO L93 Difference]: Finished difference Result 6875 states and 7664 transitions. [2022-10-16 14:29:38,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2022-10-16 14:29:38,903 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 88 states have (on average 3.965909090909091) internal successors, (349), 89 states have internal predecessors, (349), 0 states have call successors, (0), 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 117 [2022-10-16 14:29:38,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:38,925 INFO L225 Difference]: With dead ends: 6875 [2022-10-16 14:29:38,925 INFO L226 Difference]: Without dead ends: 6845 [2022-10-16 14:29:38,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18274 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=19417, Invalid=25739, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 14:29:38,936 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3200 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 1379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3200 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 2242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1379 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:38,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3200 Valid, 514 Invalid, 2242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1379 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 14:29:38,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2022-10-16 14:29:39,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 2089. [2022-10-16 14:29:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2084 states have (on average 1.1305182341650672) internal successors, (2356), 2088 states have internal predecessors, (2356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2356 transitions. [2022-10-16 14:29:39,125 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2356 transitions. Word has length 117 [2022-10-16 14:29:39,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:39,126 INFO L495 AbstractCegarLoop]: Abstraction has 2089 states and 2356 transitions. [2022-10-16 14:29:39,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 88 states have (on average 3.965909090909091) internal successors, (349), 89 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:39,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2356 transitions. [2022-10-16 14:29:39,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-10-16 14:29:39,131 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:39,131 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 14:29:39,164 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 14:29:39,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:39,345 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:29:39,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:39,346 INFO L85 PathProgramCache]: Analyzing trace with hash -855128460, now seen corresponding path program 4 times [2022-10-16 14:29:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:39,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853250103] [2022-10-16 14:29:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:39,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 0 proven. 1204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:40,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:40,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853250103] [2022-10-16 14:29:40,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853250103] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:40,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546998984] [2022-10-16 14:29:40,965 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:29:40,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:40,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:40,967 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 14:29:40,970 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 14:29:41,053 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:29:41,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:41,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 14:29:41,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:42,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 0 proven. 1204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:42,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 0 proven. 1204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:45,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546998984] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:45,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:45,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 124 [2022-10-16 14:29:45,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179905434] [2022-10-16 14:29:45,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:45,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2022-10-16 14:29:45,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2022-10-16 14:29:45,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7008, Invalid=8492, Unknown=0, NotChecked=0, Total=15500 [2022-10-16 14:29:45,425 INFO L87 Difference]: Start difference. First operand 2089 states and 2356 transitions. Second operand has 125 states, 124 states have (on average 3.975806451612903) internal successors, (493), 125 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:09,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:09,634 INFO L93 Difference]: Finished difference Result 25044 states and 27965 transitions. [2022-10-16 14:30:09,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 335 states. [2022-10-16 14:30:09,635 INFO L78 Accepts]: Start accepts. Automaton has has 125 states, 124 states have (on average 3.975806451612903) internal successors, (493), 125 states have internal predecessors, (493), 0 states have call successors, (0), 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 165 [2022-10-16 14:30:09,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:09,716 INFO L225 Difference]: With dead ends: 25044 [2022-10-16 14:30:09,716 INFO L226 Difference]: Without dead ends: 25001 [2022-10-16 14:30:09,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 359 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60933 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=55732, Invalid=74228, Unknown=0, NotChecked=0, Total=129960 [2022-10-16 14:30:09,736 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7248 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 2619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7248 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2619 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:09,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7248 Valid, 915 Invalid, 4339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2619 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-16 14:30:09,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25001 states. [2022-10-16 14:30:10,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25001 to 2432. [2022-10-16 14:30:10,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 2427 states have (on average 1.1508034610630409) internal successors, (2793), 2431 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 2793 transitions. [2022-10-16 14:30:10,215 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 2793 transitions. Word has length 165 [2022-10-16 14:30:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:10,215 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 2793 transitions. [2022-10-16 14:30:10,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 124 states have (on average 3.975806451612903) internal successors, (493), 125 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 2793 transitions. [2022-10-16 14:30:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 14:30:10,222 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:10,222 INFO L195 NwaCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1] [2022-10-16 14:30:10,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:10,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:10,437 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:30:10,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:10,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1401227344, now seen corresponding path program 3 times [2022-10-16 14:30:10,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:10,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071344930] [2022-10-16 14:30:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:11,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:11,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071344930] [2022-10-16 14:30:11,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071344930] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:11,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147241190] [2022-10-16 14:30:11,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:30:11,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:11,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:11,046 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 14:30:11,050 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 14:30:11,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2022-10-16 14:30:11,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:11,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:30:11,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:11,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:12,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147241190] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:12,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:12,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-10-16 14:30:12,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894407719] [2022-10-16 14:30:12,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:12,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-10-16 14:30:12,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:12,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-10-16 14:30:12,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 14:30:12,257 INFO L87 Difference]: Start difference. First operand 2432 states and 2793 transitions. Second operand has 47 states, 46 states have (on average 7.673913043478261) internal successors, (353), 47 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:14,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:14,181 INFO L93 Difference]: Finished difference Result 24905 states and 29173 transitions. [2022-10-16 14:30:14,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-10-16 14:30:14,182 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 7.673913043478261) internal successors, (353), 47 states have internal predecessors, (353), 0 states have call successors, (0), 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 174 [2022-10-16 14:30:14,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:14,236 INFO L225 Difference]: With dead ends: 24905 [2022-10-16 14:30:14,236 INFO L226 Difference]: Without dead ends: 24903 [2022-10-16 14:30:14,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 14:30:14,245 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 864 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:14,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 488 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:30:14,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24903 states. [2022-10-16 14:30:16,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24903 to 24676. [2022-10-16 14:30:16,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24676 states, 24671 states have (on average 1.1370029589396458) internal successors, (28051), 24675 states have internal predecessors, (28051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24676 states to 24676 states and 28051 transitions. [2022-10-16 14:30:16,408 INFO L78 Accepts]: Start accepts. Automaton has 24676 states and 28051 transitions. Word has length 174 [2022-10-16 14:30:16,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:16,409 INFO L495 AbstractCegarLoop]: Abstraction has 24676 states and 28051 transitions. [2022-10-16 14:30:16,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 7.673913043478261) internal successors, (353), 47 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:16,409 INFO L276 IsEmpty]: Start isEmpty. Operand 24676 states and 28051 transitions. [2022-10-16 14:30:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 14:30:16,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:16,462 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2022-10-16 14:30:16,498 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 14:30:16,675 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,SelfDestructingSolverStorable25 [2022-10-16 14:30:16,675 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:30:16,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash -887355541, now seen corresponding path program 4 times [2022-10-16 14:30:16,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:16,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586134690] [2022-10-16 14:30:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:16,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:17,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:17,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586134690] [2022-10-16 14:30:17,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586134690] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:17,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994012117] [2022-10-16 14:30:17,356 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:30:17,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:17,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:17,357 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 14:30:17,366 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 14:30:17,447 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:30:17,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:17,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 14:30:17,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:17,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:18,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994012117] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:18,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:18,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2022-10-16 14:30:18,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376279795] [2022-10-16 14:30:18,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:18,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 14:30:18,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:18,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 14:30:18,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 14:30:18,530 INFO L87 Difference]: Start difference. First operand 24676 states and 28051 transitions. Second operand has 49 states, 48 states have (on average 7.6875) internal successors, (369), 49 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:21,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:21,233 INFO L93 Difference]: Finished difference Result 49718 states and 59464 transitions. [2022-10-16 14:30:21,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 14:30:21,234 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 7.6875) internal successors, (369), 49 states have internal predecessors, (369), 0 states have call successors, (0), 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 182 [2022-10-16 14:30:21,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:21,319 INFO L225 Difference]: With dead ends: 49718 [2022-10-16 14:30:21,320 INFO L226 Difference]: Without dead ends: 49716 [2022-10-16 14:30:21,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 14:30:21,337 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1170 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:21,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 515 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:30:21,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49716 states. [2022-10-16 14:30:21,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49716 to 4820. [2022-10-16 14:30:21,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4820 states, 4815 states have (on average 1.1883696780893043) internal successors, (5722), 4819 states have internal predecessors, (5722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 5722 transitions. [2022-10-16 14:30:21,914 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 5722 transitions. Word has length 182 [2022-10-16 14:30:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:21,915 INFO L495 AbstractCegarLoop]: Abstraction has 4820 states and 5722 transitions. [2022-10-16 14:30:21,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 7.6875) internal successors, (369), 49 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 5722 transitions. [2022-10-16 14:30:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-16 14:30:21,921 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:21,921 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-10-16 14:30:21,956 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 14:30:22,134 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,SelfDestructingSolverStorable26 [2022-10-16 14:30:22,135 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:30:22,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:22,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1195987625, now seen corresponding path program 4 times [2022-10-16 14:30:22,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:22,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879276423] [2022-10-16 14:30:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:22,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:22,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:22,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:22,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879276423] [2022-10-16 14:30:22,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879276423] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:22,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847729025] [2022-10-16 14:30:22,956 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:30:22,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:22,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:22,958 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 14:30:22,983 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 14:30:23,076 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:30:23,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:23,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 14:30:23,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:23,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:24,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847729025] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:24,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:24,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2022-10-16 14:30:24,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060422244] [2022-10-16 14:30:24,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:24,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 14:30:24,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:24,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 14:30:24,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 14:30:24,202 INFO L87 Difference]: Start difference. First operand 4820 states and 5722 transitions. Second operand has 49 states, 48 states have (on average 7.8125) internal successors, (375), 49 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:24,910 INFO L93 Difference]: Finished difference Result 4863 states and 5748 transitions. [2022-10-16 14:30:24,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 14:30:24,911 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 7.8125) internal successors, (375), 49 states have internal predecessors, (375), 0 states have call successors, (0), 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 184 [2022-10-16 14:30:24,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:24,919 INFO L225 Difference]: With dead ends: 4863 [2022-10-16 14:30:24,919 INFO L226 Difference]: Without dead ends: 4861 [2022-10-16 14:30:24,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 14:30:24,922 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 730 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:24,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 465 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:30:24,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4861 states. [2022-10-16 14:30:25,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4861 to 4825. [2022-10-16 14:30:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 4820 states have (on average 1.1101659751037345) internal successors, (5351), 4824 states have internal predecessors, (5351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:25,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 5351 transitions. [2022-10-16 14:30:25,403 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 5351 transitions. Word has length 184 [2022-10-16 14:30:25,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:25,404 INFO L495 AbstractCegarLoop]: Abstraction has 4825 states and 5351 transitions. [2022-10-16 14:30:25,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 7.8125) internal successors, (375), 49 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:25,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 5351 transitions. [2022-10-16 14:30:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-10-16 14:30:25,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:25,413 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 23, 23, 23, 23, 23, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 14:30:25,450 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 14:30:25,628 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,SelfDestructingSolverStorable27 [2022-10-16 14:30:25,628 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:30:25,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:25,629 INFO L85 PathProgramCache]: Analyzing trace with hash 394032005, now seen corresponding path program 5 times [2022-10-16 14:30:25,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:25,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017842331] [2022-10-16 14:30:25,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:25,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2725 backedges. 0 proven. 2725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:29,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:29,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017842331] [2022-10-16 14:30:29,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017842331] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:29,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897789784] [2022-10-16 14:30:29,016 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:30:29,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:29,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:29,017 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 14:30:29,018 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 14:30:29,126 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-10-16 14:30:29,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:29,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 61 conjunts are in the unsatisfiable core [2022-10-16 14:30:29,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:31,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2725 backedges. 0 proven. 2725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:31,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2725 backedges. 0 proven. 2725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:37,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897789784] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:37,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:37,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60, 60] total 178 [2022-10-16 14:30:37,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713683685] [2022-10-16 14:30:37,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:37,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 179 states [2022-10-16 14:30:37,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:37,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 179 interpolants. [2022-10-16 14:30:37,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14334, Invalid=17528, Unknown=0, NotChecked=0, Total=31862 [2022-10-16 14:30:37,691 INFO L87 Difference]: Start difference. First operand 4825 states and 5351 transitions. Second operand has 179 states, 178 states have (on average 3.9831460674157304) internal successors, (709), 179 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:33:04,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:33:04,627 INFO L93 Difference]: Finished difference Result 106483 states and 117368 transitions. [2022-10-16 14:33:04,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 750 states. [2022-10-16 14:33:04,628 INFO L78 Accepts]: Start accepts. Automaton has has 179 states, 178 states have (on average 3.9831460674157304) internal successors, (709), 179 states have internal predecessors, (709), 0 states have call successors, (0), 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 237 [2022-10-16 14:33:04,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:33:04,793 INFO L225 Difference]: With dead ends: 106483 [2022-10-16 14:33:04,794 INFO L226 Difference]: Without dead ends: 106422 [2022-10-16 14:33:04,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1139 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 784 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360627 ImplicationChecksByTransitivity, 47.0s TimeCoverageRelationStatistics Valid=262246, Invalid=354764, Unknown=0, NotChecked=0, Total=617010 [2022-10-16 14:33:04,870 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12095 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 5066 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12095 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 7072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5066 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:33:04,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12095 Valid, 1194 Invalid, 7072 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5066 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-16 14:33:04,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106422 states. [2022-10-16 14:33:06,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106422 to 8062. [2022-10-16 14:33:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8062 states, 8057 states have (on average 1.1226262877001365) internal successors, (9045), 8061 states have internal predecessors, (9045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:33:06,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8062 states to 8062 states and 9045 transitions. [2022-10-16 14:33:06,724 INFO L78 Accepts]: Start accepts. Automaton has 8062 states and 9045 transitions. Word has length 237 [2022-10-16 14:33:06,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:33:06,725 INFO L495 AbstractCegarLoop]: Abstraction has 8062 states and 9045 transitions. [2022-10-16 14:33:06,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 179 states, 178 states have (on average 3.9831460674157304) internal successors, (709), 179 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:33:06,725 INFO L276 IsEmpty]: Start isEmpty. Operand 8062 states and 9045 transitions. [2022-10-16 14:33:06,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-10-16 14:33:06,736 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:33:06,736 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 28, 28, 28, 28, 28, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1] [2022-10-16 14:33:06,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 14:33:06,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:33:06,951 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:33:06,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:33:06,952 INFO L85 PathProgramCache]: Analyzing trace with hash -386904393, now seen corresponding path program 6 times [2022-10-16 14:33:06,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:33:06,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816061487] [2022-10-16 14:33:06,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:33:06,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:33:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:33:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5145 backedges. 0 proven. 5145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:33:12,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:33:12,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816061487] [2022-10-16 14:33:12,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816061487] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:33:12,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895937045] [2022-10-16 14:33:12,641 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:33:12,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:33:12,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:33:12,642 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 14:33:12,643 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 14:33:12,806 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 33 check-sat command(s) [2022-10-16 14:33:12,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:33:12,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 85 conjunts are in the unsatisfiable core [2022-10-16 14:33:12,816 INFO L286 TraceCheckSpWp]: Computing forward predicates...