/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_two_index_09.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:21:08,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:21:08,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:21:08,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:21:08,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:21:08,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:21:08,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:21:08,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:21:08,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:21:08,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:21:08,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:21:08,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:21:08,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:21:08,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:21:08,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:21:08,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:21:08,441 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:21:08,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:21:08,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:21:08,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:21:08,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:21:08,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:21:08,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:21:08,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:21:08,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:21:08,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:21:08,444 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:21:08,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:21:08,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:21:08,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:21:08,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:21:08,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:21:08,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:21:08,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:21:08,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:21:08,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:21:08,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:21:08,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:21:08,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:21:08,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:21:08,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:21:08,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:21:08,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:21:08,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:21:08,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:21:08,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:21:08,916 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:21:08,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_two_index_09.i [2022-10-16 10:21:09,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd2d0c893/fa05ad1bbdd8452a8a1ae5c339cae31e/FLAG721a49e38 [2022-10-16 10:21:09,682 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:21:09,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_09.i [2022-10-16 10:21:09,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd2d0c893/fa05ad1bbdd8452a8a1ae5c339cae31e/FLAG721a49e38 [2022-10-16 10:21:10,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd2d0c893/fa05ad1bbdd8452a8a1ae5c339cae31e [2022-10-16 10:21:10,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:21:10,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:21:10,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:21:10,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:21:10,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:21:10,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b073b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10, skipping insertion in model container [2022-10-16 10:21:10,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:21:10,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:21:10,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_09.i[814,827] [2022-10-16 10:21:10,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:21:10,378 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:21:10,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_two_index_09.i[814,827] [2022-10-16 10:21:10,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:21:10,415 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:21:10,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10 WrapperNode [2022-10-16 10:21:10,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:21:10,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:21:10,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:21:10,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:21:10,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,461 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2022-10-16 10:21:10,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:21:10,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:21:10,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:21:10,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:21:10,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,488 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:21:10,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:21:10,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:21:10,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:21:10,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:21:10,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:10,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:21:10,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:21:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:21:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:21:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:21:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:21:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:21:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:21:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:21:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:21:10,670 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:21:10,673 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:21:10,879 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:21:10,888 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:21:10,888 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:21:10,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:21:10 BoogieIcfgContainer [2022-10-16 10:21:10,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:21:10,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:21:10,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:21:10,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:21:10,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:21:10" (1/3) ... [2022-10-16 10:21:10,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9430d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:21:10, skipping insertion in model container [2022-10-16 10:21:10,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (2/3) ... [2022-10-16 10:21:10,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9430d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:21:10, skipping insertion in model container [2022-10-16 10:21:10,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:21:10" (3/3) ... [2022-10-16 10:21:10,902 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_two_index_09.i [2022-10-16 10:21:10,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:21:10,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 10:21:11,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:21:11,084 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;@1b6a8d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:21:11,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 10:21:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 10:21:11,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:11,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 10:21:11,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:11,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:11,164 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-16 10:21:11,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:11,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522107370] [2022-10-16 10:21:11,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:11,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:11,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:11,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522107370] [2022-10-16 10:21:11,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522107370] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:11,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:11,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:21:11,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985833773] [2022-10-16 10:21:11,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:11,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:21:11,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:11,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:21:11,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:21:11,580 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:11,668 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2022-10-16 10:21:11,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:21:11,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-16 10:21:11,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:11,681 INFO L225 Difference]: With dead ends: 82 [2022-10-16 10:21:11,682 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 10:21:11,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:21:11,691 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:11,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 64 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:21:11,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 10:21:11,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-16 10:21:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 39 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2022-10-16 10:21:11,739 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 4 [2022-10-16 10:21:11,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:11,740 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2022-10-16 10:21:11,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,741 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2022-10-16 10:21:11,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:21:11,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:11,741 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-16 10:21:11,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:21:11,742 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:11,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-16 10:21:11,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:11,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038961237] [2022-10-16 10:21:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:11,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:21:11,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:11,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038961237] [2022-10-16 10:21:11,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038961237] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:11,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:11,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:21:11,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858016164] [2022-10-16 10:21:11,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:11,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:21:11,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:11,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:21:11,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:21:11,878 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:11,946 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2022-10-16 10:21:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:21:11,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:21:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:11,948 INFO L225 Difference]: With dead ends: 61 [2022-10-16 10:21:11,948 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 10:21:11,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:21:11,951 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:11,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 33 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 10:21:11,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-10-16 10:21:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 37 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-10-16 10:21:11,960 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 7 [2022-10-16 10:21:11,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:11,960 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-10-16 10:21:11,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,960 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-10-16 10:21:11,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:21:11,961 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:11,961 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-16 10:21:11,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:21:11,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:11,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-16 10:21:11,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:11,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664891282] [2022-10-16 10:21:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:11,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:12,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:12,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664891282] [2022-10-16 10:21:12,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664891282] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:12,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761295416] [2022-10-16 10:21:12,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:12,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:12,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:12,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:12,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:21:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:12,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:21:12,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:12,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:21:12,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761295416] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:12,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:21:12,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:21:12,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048124411] [2022-10-16 10:21:12,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:12,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:21:12,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:12,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:21:12,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:12,359 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:12,435 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-10-16 10:21:12,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:21:12,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:21:12,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:12,438 INFO L225 Difference]: With dead ends: 38 [2022-10-16 10:21:12,438 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 10:21:12,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:12,444 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 24 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:12,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 10:21:12,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-10-16 10:21:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.4) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-10-16 10:21:12,462 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 8 [2022-10-16 10:21:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:12,462 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-10-16 10:21:12,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,465 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-10-16 10:21:12,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:21:12,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:12,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:12,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 10:21:12,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:12,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:12,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1080649737, now seen corresponding path program 1 times [2022-10-16 10:21:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:12,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192806575] [2022-10-16 10:21:12,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:12,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:12,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:12,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192806575] [2022-10-16 10:21:12,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192806575] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:12,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819202009] [2022-10-16 10:21:12,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:12,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:12,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:12,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:12,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:21:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:12,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:21:12,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:12,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:21:12,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:21:12,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819202009] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:12,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:21:12,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:21:12,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578354605] [2022-10-16 10:21:12,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:12,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:21:12,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:12,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:21:12,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:12,945 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:13,031 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-10-16 10:21:13,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:21:13,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:21:13,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:13,033 INFO L225 Difference]: With dead ends: 52 [2022-10-16 10:21:13,033 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 10:21:13,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:13,035 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:13,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 27 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:21:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 10:21:13,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-10-16 10:21:13,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-10-16 10:21:13,044 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 11 [2022-10-16 10:21:13,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:13,044 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-10-16 10:21:13,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-10-16 10:21:13,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:21:13,045 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:13,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:13,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:13,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:21:13,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:13,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:13,264 INFO L85 PathProgramCache]: Analyzing trace with hash 859596587, now seen corresponding path program 1 times [2022-10-16 10:21:13,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:13,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114993071] [2022-10-16 10:21:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:13,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:13,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:13,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114993071] [2022-10-16 10:21:13,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114993071] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:13,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708041499] [2022-10-16 10:21:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:13,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:13,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:13,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:13,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:21:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:13,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:21:13,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:21:13,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:21:13,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708041499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:13,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:21:13,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:21:13,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515723873] [2022-10-16 10:21:13,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:13,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:21:13,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:13,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:21:13,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:13,473 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:13,502 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-10-16 10:21:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:21:13,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 10:21:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:13,504 INFO L225 Difference]: With dead ends: 46 [2022-10-16 10:21:13,504 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 10:21:13,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:13,506 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:13,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:13,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 10:21:13,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 10:21:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-10-16 10:21:13,513 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 12 [2022-10-16 10:21:13,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:13,514 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-10-16 10:21:13,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,514 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-10-16 10:21:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:21:13,515 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:13,515 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:13,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:13,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:13,726 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:13,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:13,728 INFO L85 PathProgramCache]: Analyzing trace with hash -483778513, now seen corresponding path program 1 times [2022-10-16 10:21:13,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:13,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993744923] [2022-10-16 10:21:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:13,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:13,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:13,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993744923] [2022-10-16 10:21:13,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993744923] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:13,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006559535] [2022-10-16 10:21:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:13,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:13,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:21:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:13,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:21:13,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:13,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:13,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:13,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006559535] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:13,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:13,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 10:21:13,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749388666] [2022-10-16 10:21:13,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:13,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:21:13,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:13,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:21:13,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:21:13,877 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:13,941 INFO L93 Difference]: Finished difference Result 103 states and 110 transitions. [2022-10-16 10:21:13,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:21:13,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 10:21:13,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:13,943 INFO L225 Difference]: With dead ends: 103 [2022-10-16 10:21:13,943 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 10:21:13,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:21:13,945 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 54 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:13,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 66 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:21:13,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 10:21:13,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2022-10-16 10:21:13,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2022-10-16 10:21:13,954 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 16 [2022-10-16 10:21:13,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:13,955 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2022-10-16 10:21:13,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2022-10-16 10:21:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:21:13,972 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:13,973 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:14,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:14,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:14,174 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:14,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1270889002, now seen corresponding path program 2 times [2022-10-16 10:21:14,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:14,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220813101] [2022-10-16 10:21:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:14,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 10:21:14,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:14,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220813101] [2022-10-16 10:21:14,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220813101] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:14,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142393430] [2022-10-16 10:21:14,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:21:14,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:14,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:14,260 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:14,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:21:14,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:21:14,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:14,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:21:14,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:14,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:14,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142393430] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:14,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:14,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-16 10:21:14,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168718545] [2022-10-16 10:21:14,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:14,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:21:14,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:14,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:21:14,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:21:14,491 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:14,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:14,786 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2022-10-16 10:21:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:21:14,786 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:21:14,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:14,787 INFO L225 Difference]: With dead ends: 125 [2022-10-16 10:21:14,788 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 10:21:14,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=225, Invalid=375, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:21:14,790 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 114 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:14,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 57 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:21:14,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 10:21:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-10-16 10:21:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 81 states have (on average 1.0740740740740742) internal successors, (87), 84 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:14,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2022-10-16 10:21:14,805 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 25 [2022-10-16 10:21:14,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:14,806 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2022-10-16 10:21:14,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:14,806 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2022-10-16 10:21:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:21:14,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:14,808 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:21:14,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:15,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:15,023 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:15,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:15,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1240077936, now seen corresponding path program 3 times [2022-10-16 10:21:15,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:15,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899826414] [2022-10-16 10:21:15,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:15,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 10:21:15,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:15,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899826414] [2022-10-16 10:21:15,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899826414] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:15,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120317328] [2022-10-16 10:21:15,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:21:15,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:15,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:15,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:15,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:21:15,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:21:15,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:15,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:21:15,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-10-16 10:21:15,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-10-16 10:21:15,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120317328] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:15,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:15,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2022-10-16 10:21:15,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673934289] [2022-10-16 10:21:15,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:15,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:21:15,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:21:15,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:21:15,620 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:15,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:15,970 INFO L93 Difference]: Finished difference Result 180 states and 196 transitions. [2022-10-16 10:21:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:21:15,971 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 10:21:15,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:15,973 INFO L225 Difference]: With dead ends: 180 [2022-10-16 10:21:15,974 INFO L226 Difference]: Without dead ends: 128 [2022-10-16 10:21:15,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2022-10-16 10:21:15,976 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 337 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:15,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 47 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:21:15,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-10-16 10:21:15,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 112. [2022-10-16 10:21:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 109 states have (on average 1.0825688073394495) internal successors, (118), 111 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 118 transitions. [2022-10-16 10:21:15,991 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 118 transitions. Word has length 48 [2022-10-16 10:21:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:15,991 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 118 transitions. [2022-10-16 10:21:15,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:15,992 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2022-10-16 10:21:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 10:21:15,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:15,994 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:21:16,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:16,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:16,209 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:16,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:16,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1920685015, now seen corresponding path program 4 times [2022-10-16 10:21:16,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:16,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255592669] [2022-10-16 10:21:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:16,591 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:16,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:16,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255592669] [2022-10-16 10:21:16,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255592669] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:16,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076931523] [2022-10-16 10:21:16,592 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:21:16,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:16,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:16,594 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:16,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:21:16,682 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:21:16,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:16,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 10:21:16,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:16,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:17,027 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:17,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076931523] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:17,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:17,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-10-16 10:21:17,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035413078] [2022-10-16 10:21:17,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:17,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:21:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:17,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:21:17,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:21:17,030 INFO L87 Difference]: Start difference. First operand 112 states and 118 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:17,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:17,232 INFO L93 Difference]: Finished difference Result 245 states and 269 transitions. [2022-10-16 10:21:17,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:21:17,233 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-16 10:21:17,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:17,234 INFO L225 Difference]: With dead ends: 245 [2022-10-16 10:21:17,234 INFO L226 Difference]: Without dead ends: 169 [2022-10-16 10:21:17,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:21:17,237 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 166 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:17,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 151 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:21:17,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-16 10:21:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 151. [2022-10-16 10:21:17,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 148 states have (on average 1.0472972972972974) internal successors, (155), 150 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:17,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 155 transitions. [2022-10-16 10:21:17,253 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 155 transitions. Word has length 71 [2022-10-16 10:21:17,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:17,254 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 155 transitions. [2022-10-16 10:21:17,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:17,254 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 155 transitions. [2022-10-16 10:21:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 10:21:17,278 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:17,279 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:21:17,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:17,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:17,480 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:17,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:17,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1281609584, now seen corresponding path program 5 times [2022-10-16 10:21:17,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:17,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848154164] [2022-10-16 10:21:17,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:17,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:18,523 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:18,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:18,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848154164] [2022-10-16 10:21:18,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848154164] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:18,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494791410] [2022-10-16 10:21:18,524 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:21:18,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:18,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:18,528 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:18,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:21:20,765 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-10-16 10:21:20,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:20,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:21:20,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:20,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:21,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494791410] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:21,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:21,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-10-16 10:21:21,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141379292] [2022-10-16 10:21:21,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:21,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 10:21:21,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:21,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 10:21:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:21:21,933 INFO L87 Difference]: Start difference. First operand 151 states and 155 transitions. Second operand has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:22,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:22,383 INFO L93 Difference]: Finished difference Result 349 states and 382 transitions. [2022-10-16 10:21:22,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 10:21:22,384 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-10-16 10:21:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:22,387 INFO L225 Difference]: With dead ends: 349 [2022-10-16 10:21:22,387 INFO L226 Difference]: Without dead ends: 273 [2022-10-16 10:21:22,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:21:22,391 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 396 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:22,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 221 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:21:22,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-10-16 10:21:22,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 229. [2022-10-16 10:21:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 226 states have (on average 1.0221238938053097) internal successors, (231), 228 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:22,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 231 transitions. [2022-10-16 10:21:22,438 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 231 transitions. Word has length 110 [2022-10-16 10:21:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:22,441 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 231 transitions. [2022-10-16 10:21:22,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 53 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 231 transitions. [2022-10-16 10:21:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 10:21:22,454 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:22,454 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:21:22,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:22,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 10:21:22,669 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:22,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:22,671 INFO L85 PathProgramCache]: Analyzing trace with hash 556293520, now seen corresponding path program 6 times [2022-10-16 10:21:22,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:22,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038256715] [2022-10-16 10:21:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:22,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 10:21:26,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:26,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038256715] [2022-10-16 10:21:26,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038256715] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:26,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122896986] [2022-10-16 10:21:26,114 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:21:26,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:26,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:26,116 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:26,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:21:27,199 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2022-10-16 10:21:27,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:27,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:21:27,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:27,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 3725 trivial. 0 not checked. [2022-10-16 10:21:27,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3824 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 3725 trivial. 0 not checked. [2022-10-16 10:21:28,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122896986] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:28,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:28,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 8, 8] total 67 [2022-10-16 10:21:28,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551272292] [2022-10-16 10:21:28,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:28,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:21:28,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:28,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:21:28,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:21:28,069 INFO L87 Difference]: Start difference. First operand 229 states and 231 transitions. Second operand has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:30,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:30,373 INFO L93 Difference]: Finished difference Result 412 states and 440 transitions. [2022-10-16 10:21:30,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-10-16 10:21:30,374 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2022-10-16 10:21:30,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:30,380 INFO L225 Difference]: With dead ends: 412 [2022-10-16 10:21:30,380 INFO L226 Difference]: Without dead ends: 336 [2022-10-16 10:21:30,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2470 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=5537, Invalid=10465, Unknown=0, NotChecked=0, Total=16002 [2022-10-16 10:21:30,393 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 655 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:30,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 98 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:21:30,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-10-16 10:21:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 316. [2022-10-16 10:21:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 313 states have (on average 1.0415335463258786) internal successors, (326), 315 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 326 transitions. [2022-10-16 10:21:30,411 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 326 transitions. Word has length 188 [2022-10-16 10:21:30,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:30,413 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 326 transitions. [2022-10-16 10:21:30,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.582089552238806) internal successors, (240), 67 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:30,414 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 326 transitions. [2022-10-16 10:21:30,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-10-16 10:21:30,424 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:30,425 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:21:30,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:30,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:30,638 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1404568745, now seen corresponding path program 7 times [2022-10-16 10:21:30,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:30,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029704268] [2022-10-16 10:21:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:33,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:33,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029704268] [2022-10-16 10:21:33,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029704268] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:33,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992804418] [2022-10-16 10:21:33,967 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:21:33,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:33,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:33,972 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:33,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:21:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:34,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:21:34,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:34,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4387 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:38,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992804418] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:38,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:38,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2022-10-16 10:21:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331743549] [2022-10-16 10:21:38,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:38,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-10-16 10:21:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:38,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-10-16 10:21:38,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:21:38,251 INFO L87 Difference]: Start difference. First operand 316 states and 326 transitions. Second operand has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:39,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:39,153 INFO L93 Difference]: Finished difference Result 705 states and 777 transitions. [2022-10-16 10:21:39,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-16 10:21:39,154 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-10-16 10:21:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:39,158 INFO L225 Difference]: With dead ends: 705 [2022-10-16 10:21:39,158 INFO L226 Difference]: Without dead ends: 545 [2022-10-16 10:21:39,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:21:39,163 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1040 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:39,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 395 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:21:39,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-10-16 10:21:39,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 475. [2022-10-16 10:21:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 472 states have (on average 1.0148305084745763) internal successors, (479), 474 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 479 transitions. [2022-10-16 10:21:39,186 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 479 transitions. Word has length 231 [2022-10-16 10:21:39,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:39,187 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 479 transitions. [2022-10-16 10:21:39,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 3.0093457943925235) internal successors, (322), 107 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:39,188 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 479 transitions. [2022-10-16 10:21:39,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-10-16 10:21:39,194 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:39,195 INFO L195 NwaCegarLoop]: trace histogram [104, 104, 104, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:21:39,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-10-16 10:21:39,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 10:21:39,411 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:21:39,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:39,412 INFO L85 PathProgramCache]: Analyzing trace with hash -416360592, now seen corresponding path program 8 times [2022-10-16 10:21:39,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:39,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561322276] [2022-10-16 10:21:39,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:39,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:50,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:50,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:50,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561322276] [2022-10-16 10:21:50,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561322276] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:50,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409835694] [2022-10-16 10:21:50,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:21:50,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:50,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:50,904 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:50,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:21:51,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:21:51,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:51,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 106 conjunts are in the unsatisfiable core [2022-10-16 10:21:51,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:21:51,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 16683 backedges. 0 proven. 16172 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:22:06,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409835694] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:06,836 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:06,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 213 [2022-10-16 10:22:06,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361123098] [2022-10-16 10:22:06,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:06,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-10-16 10:22:06,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:06,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-10-16 10:22:06,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:22:06,854 INFO L87 Difference]: Start difference. First operand 475 states and 479 transitions. Second operand has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:11,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:11,253 INFO L93 Difference]: Finished difference Result 1237 states and 1360 transitions. [2022-10-16 10:22:11,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-10-16 10:22:11,254 INFO L78 Accepts]: Start accepts. Automaton has has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2022-10-16 10:22:11,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:11,260 INFO L225 Difference]: With dead ends: 1237 [2022-10-16 10:22:11,260 INFO L226 Difference]: Without dead ends: 1077 [2022-10-16 10:22:11,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 10:22:11,266 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2249 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:11,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 846 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 10:22:11,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-10-16 10:22:11,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 840. [2022-10-16 10:22:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 837 states have (on average 1.016726403823178) internal successors, (851), 839 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:11,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 851 transitions. [2022-10-16 10:22:11,317 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 851 transitions. Word has length 390 [2022-10-16 10:22:11,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:11,318 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 851 transitions. [2022-10-16 10:22:11,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 3.004694835680751) internal successors, (640), 213 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:11,319 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 851 transitions. [2022-10-16 10:22:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2022-10-16 10:22:11,340 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:11,341 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 10:22:11,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:11,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 10:22:11,557 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:22:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:11,558 INFO L85 PathProgramCache]: Analyzing trace with hash 950267536, now seen corresponding path program 9 times [2022-10-16 10:22:11,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:11,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227390768] [2022-10-16 10:22:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:11,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:51,720 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 66045 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-10-16 10:22:51,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:51,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227390768] [2022-10-16 10:22:51,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227390768] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:51,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666022983] [2022-10-16 10:22:51,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:22:51,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:51,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:51,727 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:51,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:23:00,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-10-16 10:23:00,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:23:00,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:23:00,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:23:02,712 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 66045 trivial. 0 not checked. [2022-10-16 10:23:02,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:23:05,564 INFO L134 CoverageAnalysis]: Checked inductivity of 66556 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 66045 trivial. 0 not checked. [2022-10-16 10:23:05,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666022983] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:23:05,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:23:05,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 16, 16] total 243 [2022-10-16 10:23:05,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561528143] [2022-10-16 10:23:05,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:23:05,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 243 states [2022-10-16 10:23:05,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:23:05,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2022-10-16 10:23:05,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23073, Invalid=35733, Unknown=0, NotChecked=0, Total=58806 [2022-10-16 10:23:05,578 INFO L87 Difference]: Start difference. First operand 840 states and 851 transitions. Second operand has 243 states, 243 states have (on average 3.292181069958848) internal successors, (800), 243 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:23:43,753 INFO L93 Difference]: Finished difference Result 1301 states and 1352 transitions. [2022-10-16 10:23:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 281 states. [2022-10-16 10:23:43,754 INFO L78 Accepts]: Start accepts. Automaton has has 243 states, 243 states have (on average 3.292181069958848) internal successors, (800), 243 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 708 [2022-10-16 10:23:43,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:23:43,760 INFO L225 Difference]: With dead ends: 1301 [2022-10-16 10:23:43,761 INFO L226 Difference]: Without dead ends: 1094 [2022-10-16 10:23:43,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1896 GetRequests, 1386 SyntacticMatches, 0 SemanticMatches, 510 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42388 ImplicationChecksByTransitivity, 53.5s TimeCoverageRelationStatistics Valid=89321, Invalid=172311, Unknown=0, NotChecked=0, Total=261632 [2022-10-16 10:23:43,776 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3606 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 1135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3606 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 2955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1135 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:23:43,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3606 Valid, 195 Invalid, 2955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1135 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 10:23:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-10-16 10:23:43,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 964. [2022-10-16 10:23:43,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 961 states have (on average 1.0114464099895941) internal successors, (972), 963 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:43,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 972 transitions. [2022-10-16 10:23:43,825 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 972 transitions. Word has length 708 [2022-10-16 10:23:43,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:23:43,826 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 972 transitions. [2022-10-16 10:23:43,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 243 states, 243 states have (on average 3.292181069958848) internal successors, (800), 243 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:43,827 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 972 transitions. [2022-10-16 10:23:43,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2022-10-16 10:23:43,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:23:43,835 INFO L195 NwaCegarLoop]: trace histogram [211, 211, 211, 31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-10-16 10:23:43,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:23:44,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:23:44,049 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 10:23:44,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:23:44,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1574485673, now seen corresponding path program 10 times [2022-10-16 10:23:44,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:23:44,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836961505] [2022-10-16 10:23:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:23:44,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:23:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:24:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 68971 backedges. 0 proven. 66676 refuted. 0 times theorem prover too weak. 2295 trivial. 0 not checked. [2022-10-16 10:24:26,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:24:26,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836961505] [2022-10-16 10:24:26,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836961505] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:24:26,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568138428] [2022-10-16 10:24:26,190 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:24:26,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:24:26,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:24:26,191 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:24:26,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:24:26,825 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:24:26,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:24:26,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 213 conjunts are in the unsatisfiable core [2022-10-16 10:24:26,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:24:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 68971 backedges. 0 proven. 66676 refuted. 0 times theorem prover too weak. 2295 trivial. 0 not checked. [2022-10-16 10:24:27,725 INFO L328 TraceCheckSpWp]: Computing backward predicates...