/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/reducercommutativity/sep10-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:55:33,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:55:33,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:55:33,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:55:33,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:55:33,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:55:33,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:55:33,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:55:33,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:55:33,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:55:33,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:55:33,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:55:33,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:55:33,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:55:33,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:55:33,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:55:33,534 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:55:33,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:55:33,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:55:33,535 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:55:33,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:55:33,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:55:33,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:55:33,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:55:33,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:55:33,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:55:33,537 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:55:33,537 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:55:33,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:55:33,538 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:55:33,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:55:33,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:55:33,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:55:33,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:55:33,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:55:33,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:55:33,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:55:33,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:55:33,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:55:33,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:55:33,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:55:33,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:55:33,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:55:33,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:55:33,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:55:33,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:55:33,964 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:55:33,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/sep10-2.i [2022-10-16 14:55:34,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf283442/3195499230224361b3f35f60838445f2/FLAG375564883 [2022-10-16 14:55:34,755 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:55:34,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep10-2.i [2022-10-16 14:55:34,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf283442/3195499230224361b3f35f60838445f2/FLAG375564883 [2022-10-16 14:55:35,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf283442/3195499230224361b3f35f60838445f2 [2022-10-16 14:55:35,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:55:35,077 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:55:35,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:55:35,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:55:35,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:55:35,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579d5a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35, skipping insertion in model container [2022-10-16 14:55:35,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:55:35,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:55:35,308 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/reducercommutativity/sep10-2.i[1293,1306] [2022-10-16 14:55:35,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:55:35,319 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:55:35,351 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/reducercommutativity/sep10-2.i[1293,1306] [2022-10-16 14:55:35,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:55:35,368 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:55:35,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35 WrapperNode [2022-10-16 14:55:35,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:55:35,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:55:35,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:55:35,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:55:35,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,414 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-10-16 14:55:35,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:55:35,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:55:35,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:55:35,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:55:35,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,446 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:55:35,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:55:35,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:55:35,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:55:35,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (1/1) ... [2022-10-16 14:55:35,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:55:35,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:35,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:55:35,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:55:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:55:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:55:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:55:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:55:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:55:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:55:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:55:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:55:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure sep [2022-10-16 14:55:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sep [2022-10-16 14:55:35,628 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:55:35,631 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:55:35,872 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:55:35,882 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:55:35,882 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 14:55:35,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:35 BoogieIcfgContainer [2022-10-16 14:55:35,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:55:35,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:55:35,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:55:35,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:55:35,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:55:35" (1/3) ... [2022-10-16 14:55:35,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3b6a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:35, skipping insertion in model container [2022-10-16 14:55:35,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:35" (2/3) ... [2022-10-16 14:55:35,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3b6a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:35, skipping insertion in model container [2022-10-16 14:55:35,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:35" (3/3) ... [2022-10-16 14:55:35,952 INFO L112 eAbstractionObserver]: Analyzing ICFG sep10-2.i [2022-10-16 14:55:36,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:55:36,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 14:55:36,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:55:36,173 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;@1f075bd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:55:36,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 14:55:36,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.625) internal successors, (52), 44 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:55:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:55:36,193 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:36,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:55:36,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:36,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:36,207 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 14:55:36,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:36,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244850819] [2022-10-16 14:55:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:36,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:36,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:36,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244850819] [2022-10-16 14:55:36,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244850819] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:36,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:55:36,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:55:36,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685538199] [2022-10-16 14:55:36,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:36,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:55:36,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:36,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:55:36,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:55:36,710 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.625) internal successors, (52), 44 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:36,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:36,860 INFO L93 Difference]: Finished difference Result 96 states and 117 transitions. [2022-10-16 14:55:36,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:55:36,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:55:36,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:36,893 INFO L225 Difference]: With dead ends: 96 [2022-10-16 14:55:36,893 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 14:55:36,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:55:36,910 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:36,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 146 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 14:55:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-10-16 14:55:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 43 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-16 14:55:36,982 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 5 [2022-10-16 14:55:36,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:36,983 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-16 14:55:36,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-16 14:55:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:55:36,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:36,985 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:55:36,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:55:36,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:36,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 14:55:36,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:36,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505305679] [2022-10-16 14:55:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:36,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:55:37,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:37,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505305679] [2022-10-16 14:55:37,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505305679] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:37,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:55:37,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:55:37,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833684789] [2022-10-16 14:55:37,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:37,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:55:37,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:37,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:55:37,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:55:37,198 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:37,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:37,261 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-10-16 14:55:37,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:55:37,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:55:37,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:37,267 INFO L225 Difference]: With dead ends: 47 [2022-10-16 14:55:37,268 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 14:55:37,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:55:37,272 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:37,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 123 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:37,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 14:55:37,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 14:55:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:37,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-10-16 14:55:37,293 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 9 [2022-10-16 14:55:37,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:37,294 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-10-16 14:55:37,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:37,294 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-10-16 14:55:37,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:55:37,296 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:37,296 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:55:37,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:55:37,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:37,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 14:55:37,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:37,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731867273] [2022-10-16 14:55:37,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:37,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:37,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:37,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:37,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731867273] [2022-10-16 14:55:37,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731867273] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:37,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543544180] [2022-10-16 14:55:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:37,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:37,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:37,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:37,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:55:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:37,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:55:37,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:37,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:55:37,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543544180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:37,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:55:37,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:55:37,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538882847] [2022-10-16 14:55:37,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:37,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:55:37,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:37,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:55:37,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:55:37,682 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:37,770 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-10-16 14:55:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:55:37,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:55:37,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:37,772 INFO L225 Difference]: With dead ends: 46 [2022-10-16 14:55:37,772 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 14:55:37,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:55:37,775 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 34 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:37,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 145 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:37,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 14:55:37,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-10-16 14:55:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.5) internal successors, (42), 38 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-16 14:55:37,785 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 10 [2022-10-16 14:55:37,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:37,786 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-16 14:55:37,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-16 14:55:37,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:55:37,787 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:37,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:37,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:38,001 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 14:55:38,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:38,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1512525501, now seen corresponding path program 1 times [2022-10-16 14:55:38,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:38,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658240335] [2022-10-16 14:55:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:38,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:38,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:38,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658240335] [2022-10-16 14:55:38,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658240335] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:38,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566753551] [2022-10-16 14:55:38,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:38,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:38,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:38,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:38,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:55:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:38,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:55:38,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:38,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:38,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566753551] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:38,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:38,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:55:38,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635149575] [2022-10-16 14:55:38,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:38,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:55:38,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:38,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:55:38,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:55:38,362 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:38,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:38,425 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2022-10-16 14:55:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:55:38,426 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 14:55:38,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:38,428 INFO L225 Difference]: With dead ends: 85 [2022-10-16 14:55:38,428 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 14:55:38,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:55:38,431 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:38,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 286 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 14:55:38,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-16 14:55:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-10-16 14:55:38,440 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 12 [2022-10-16 14:55:38,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:38,441 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-10-16 14:55:38,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:38,442 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-10-16 14:55:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:55:38,443 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:38,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:38,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:38,656 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 14:55:38,657 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:38,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:38,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1503946571, now seen corresponding path program 2 times [2022-10-16 14:55:38,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:38,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071212527] [2022-10-16 14:55:38,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:38,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:55:38,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:38,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071212527] [2022-10-16 14:55:38,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071212527] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:38,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:55:38,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:55:38,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249995478] [2022-10-16 14:55:38,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:38,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:55:38,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:38,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:55:38,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:55:38,743 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:38,779 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2022-10-16 14:55:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:55:38,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:55:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:38,783 INFO L225 Difference]: With dead ends: 63 [2022-10-16 14:55:38,783 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:55:38,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:55:38,786 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 10 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:38,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 120 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:38,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:55:38,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2022-10-16 14:55:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.4) internal successors, (56), 50 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:38,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2022-10-16 14:55:38,799 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 20 [2022-10-16 14:55:38,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:38,800 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2022-10-16 14:55:38,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:38,800 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2022-10-16 14:55:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:55:38,801 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:38,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:38,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:55:38,802 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:38,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:38,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1503946763, now seen corresponding path program 1 times [2022-10-16 14:55:38,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:38,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270793079] [2022-10-16 14:55:38,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:55:38,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:38,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270793079] [2022-10-16 14:55:38,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270793079] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:38,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:55:38,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:55:38,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290029548] [2022-10-16 14:55:38,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:38,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:55:38,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:55:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:55:38,938 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:38,970 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2022-10-16 14:55:38,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:55:38,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:55:38,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:38,975 INFO L225 Difference]: With dead ends: 61 [2022-10-16 14:55:38,975 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:55:38,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:55:38,981 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:38,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 120 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:38,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:55:38,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2022-10-16 14:55:38,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.380952380952381) internal successors, (58), 52 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:39,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-10-16 14:55:39,000 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 20 [2022-10-16 14:55:39,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:39,001 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-10-16 14:55:39,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:39,001 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-10-16 14:55:39,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:55:39,002 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:39,002 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:39,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:55:39,006 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:39,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1026432674, now seen corresponding path program 1 times [2022-10-16 14:55:39,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:39,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763653356] [2022-10-16 14:55:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:39,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:55:39,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:39,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763653356] [2022-10-16 14:55:39,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763653356] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:39,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:55:39,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:55:39,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764546724] [2022-10-16 14:55:39,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:39,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:55:39,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:39,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:55:39,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:55:39,148 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:39,180 INFO L93 Difference]: Finished difference Result 99 states and 115 transitions. [2022-10-16 14:55:39,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:55:39,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 14:55:39,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:39,183 INFO L225 Difference]: With dead ends: 99 [2022-10-16 14:55:39,183 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:55:39,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:55:39,192 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 6 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:39,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 123 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:39,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:55:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 14:55:39,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-10-16 14:55:39,214 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 23 [2022-10-16 14:55:39,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:39,215 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-10-16 14:55:39,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-10-16 14:55:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:55:39,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:39,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:39,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:55:39,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:39,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:39,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1515961805, now seen corresponding path program 1 times [2022-10-16 14:55:39,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:39,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168515117] [2022-10-16 14:55:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:39,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:55:39,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:39,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168515117] [2022-10-16 14:55:39,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168515117] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:39,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037438505] [2022-10-16 14:55:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:39,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:39,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:39,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:39,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:55:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:39,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:55:39,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:55:39,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:55:39,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037438505] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:39,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:39,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2022-10-16 14:55:39,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097516816] [2022-10-16 14:55:39,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:39,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 14:55:39,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:39,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 14:55:39,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:55:39,635 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:39,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:39,827 INFO L93 Difference]: Finished difference Result 134 states and 153 transitions. [2022-10-16 14:55:39,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:55:39,828 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 14:55:39,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:39,829 INFO L225 Difference]: With dead ends: 134 [2022-10-16 14:55:39,830 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 14:55:39,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:55:39,832 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 62 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:39,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 325 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:39,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 14:55:39,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81. [2022-10-16 14:55:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 77 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:39,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2022-10-16 14:55:39,843 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 27 [2022-10-16 14:55:39,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:39,843 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2022-10-16 14:55:39,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2022-10-16 14:55:39,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 14:55:39,845 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:39,845 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:39,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:40,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:40,059 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:40,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:40,060 INFO L85 PathProgramCache]: Analyzing trace with hash 720386173, now seen corresponding path program 1 times [2022-10-16 14:55:40,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:40,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554278129] [2022-10-16 14:55:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:40,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:40,254 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:55:40,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:40,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554278129] [2022-10-16 14:55:40,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554278129] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:40,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427470109] [2022-10-16 14:55:40,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:40,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:40,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:40,259 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:40,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:55:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:40,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:55:40,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:55:40,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:55:40,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427470109] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:40,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:40,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 25 [2022-10-16 14:55:40,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734035753] [2022-10-16 14:55:40,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:40,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:55:40,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:40,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:55:40,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:55:40,946 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:41,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:41,218 INFO L93 Difference]: Finished difference Result 160 states and 182 transitions. [2022-10-16 14:55:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 14:55:41,219 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-16 14:55:41,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:41,220 INFO L225 Difference]: With dead ends: 160 [2022-10-16 14:55:41,220 INFO L226 Difference]: Without dead ends: 110 [2022-10-16 14:55:41,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 55 SyntacticMatches, 11 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 14:55:41,222 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 81 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:41,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 256 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:41,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-16 14:55:41,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2022-10-16 14:55:41,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.255813953488372) internal successors, (108), 96 states have internal predecessors, (108), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 113 transitions. [2022-10-16 14:55:41,233 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 113 transitions. Word has length 43 [2022-10-16 14:55:41,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:41,233 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 113 transitions. [2022-10-16 14:55:41,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 113 transitions. [2022-10-16 14:55:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 14:55:41,235 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:41,236 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:41,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:41,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:41,451 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:41,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:41,452 INFO L85 PathProgramCache]: Analyzing trace with hash 232809207, now seen corresponding path program 1 times [2022-10-16 14:55:41,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:41,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115489603] [2022-10-16 14:55:41,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:41,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:41,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:41,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115489603] [2022-10-16 14:55:41,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115489603] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:41,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900048235] [2022-10-16 14:55:41,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:41,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:41,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:41,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:41,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:55:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:41,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:55:41,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:41,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:55:41,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900048235] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:41,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:55:41,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:55:41,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386765569] [2022-10-16 14:55:41,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:41,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:55:41,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:41,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:55:41,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:55:41,747 INFO L87 Difference]: Start difference. First operand 100 states and 113 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:41,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:41,823 INFO L93 Difference]: Finished difference Result 142 states and 167 transitions. [2022-10-16 14:55:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:55:41,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-16 14:55:41,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:41,825 INFO L225 Difference]: With dead ends: 142 [2022-10-16 14:55:41,825 INFO L226 Difference]: Without dead ends: 140 [2022-10-16 14:55:41,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:55:41,826 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 35 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:41,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 211 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:41,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-10-16 14:55:41,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 114. [2022-10-16 14:55:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 100 states have (on average 1.32) internal successors, (132), 110 states have internal predecessors, (132), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-10-16 14:55:41,838 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 55 [2022-10-16 14:55:41,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:41,839 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-10-16 14:55:41,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:41,839 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-10-16 14:55:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:55:41,841 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:41,841 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:41,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:42,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 14:55:42,055 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:42,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash 194096726, now seen corresponding path program 1 times [2022-10-16 14:55:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:42,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377820711] [2022-10-16 14:55:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:42,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:42,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377820711] [2022-10-16 14:55:42,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377820711] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:42,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979480195] [2022-10-16 14:55:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:42,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:42,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:42,281 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:42,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:55:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:42,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:55:42,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:42,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:55:42,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979480195] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:42,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:55:42,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:55:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659826681] [2022-10-16 14:55:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:42,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:55:42,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:42,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:55:42,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:55:42,413 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:42,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:42,473 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2022-10-16 14:55:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:55:42,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 14:55:42,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:42,478 INFO L225 Difference]: With dead ends: 134 [2022-10-16 14:55:42,478 INFO L226 Difference]: Without dead ends: 133 [2022-10-16 14:55:42,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:55:42,479 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 20 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:42,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 206 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:42,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-16 14:55:42,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 121. [2022-10-16 14:55:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 117 states have internal predecessors, (144), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 149 transitions. [2022-10-16 14:55:42,501 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 149 transitions. Word has length 56 [2022-10-16 14:55:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:42,502 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 149 transitions. [2022-10-16 14:55:42,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 149 transitions. [2022-10-16 14:55:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:55:42,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:42,508 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:42,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:42,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:42,722 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:42,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:42,723 INFO L85 PathProgramCache]: Analyzing trace with hash 194102684, now seen corresponding path program 1 times [2022-10-16 14:55:42,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:42,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739808099] [2022-10-16 14:55:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:42,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:42,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:42,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739808099] [2022-10-16 14:55:42,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739808099] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:42,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128609361] [2022-10-16 14:55:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:42,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:42,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:42,855 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:42,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:55:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:42,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:55:42,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:42,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:55:42,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128609361] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:42,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:55:42,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:55:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539618994] [2022-10-16 14:55:42,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:42,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:55:42,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:42,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:55:42,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:55:42,973 INFO L87 Difference]: Start difference. First operand 121 states and 149 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:43,049 INFO L93 Difference]: Finished difference Result 165 states and 206 transitions. [2022-10-16 14:55:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:55:43,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 14:55:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:43,052 INFO L225 Difference]: With dead ends: 165 [2022-10-16 14:55:43,052 INFO L226 Difference]: Without dead ends: 163 [2022-10-16 14:55:43,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:55:43,053 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 32 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:43,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 202 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-10-16 14:55:43,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 135. [2022-10-16 14:55:43,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 121 states have (on average 1.3801652892561984) internal successors, (167), 131 states have internal predecessors, (167), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 172 transitions. [2022-10-16 14:55:43,062 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 172 transitions. Word has length 56 [2022-10-16 14:55:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:43,062 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 172 transitions. [2022-10-16 14:55:43,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 172 transitions. [2022-10-16 14:55:43,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:55:43,063 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:43,064 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:43,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:43,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:43,278 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:43,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:43,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1372849072, now seen corresponding path program 1 times [2022-10-16 14:55:43,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:43,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517833688] [2022-10-16 14:55:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:43,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:43,398 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:43,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:43,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517833688] [2022-10-16 14:55:43,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517833688] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:43,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045215071] [2022-10-16 14:55:43,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:43,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:43,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:43,401 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:43,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:55:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:43,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:55:43,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:43,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:43,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045215071] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:43,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:43,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:55:43,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471770587] [2022-10-16 14:55:43,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:43,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:55:43,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:43,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:55:43,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:55:43,599 INFO L87 Difference]: Start difference. First operand 135 states and 172 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:43,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:43,768 INFO L93 Difference]: Finished difference Result 189 states and 247 transitions. [2022-10-16 14:55:43,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 14:55:43,769 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 14:55:43,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:43,770 INFO L225 Difference]: With dead ends: 189 [2022-10-16 14:55:43,771 INFO L226 Difference]: Without dead ends: 187 [2022-10-16 14:55:43,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:55:43,772 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 71 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:43,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 268 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:43,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-10-16 14:55:43,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 148. [2022-10-16 14:55:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 135 states have (on average 1.385185185185185) internal successors, (187), 144 states have internal predecessors, (187), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 192 transitions. [2022-10-16 14:55:43,782 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 192 transitions. Word has length 56 [2022-10-16 14:55:43,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:43,783 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 192 transitions. [2022-10-16 14:55:43,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:43,783 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 192 transitions. [2022-10-16 14:55:43,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:55:43,784 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:43,784 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:43,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:43,995 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,SelfDestructingSolverStorable12 [2022-10-16 14:55:43,996 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:43,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:43,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1372843114, now seen corresponding path program 1 times [2022-10-16 14:55:43,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:43,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514548989] [2022-10-16 14:55:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:43,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:44,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:44,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514548989] [2022-10-16 14:55:44,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514548989] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:44,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144954617] [2022-10-16 14:55:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:44,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:44,115 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:44,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:55:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:44,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:55:44,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:44,248 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:44,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:44,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144954617] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:44,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:44,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:55:44,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819243853] [2022-10-16 14:55:44,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:44,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:55:44,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:55:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:55:44,294 INFO L87 Difference]: Start difference. First operand 148 states and 192 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:44,376 INFO L93 Difference]: Finished difference Result 186 states and 241 transitions. [2022-10-16 14:55:44,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:55:44,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 14:55:44,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:44,380 INFO L225 Difference]: With dead ends: 186 [2022-10-16 14:55:44,380 INFO L226 Difference]: Without dead ends: 185 [2022-10-16 14:55:44,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:55:44,381 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:44,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 305 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:44,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-10-16 14:55:44,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 166. [2022-10-16 14:55:44,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 153 states have (on average 1.4052287581699345) internal successors, (215), 162 states have internal predecessors, (215), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 220 transitions. [2022-10-16 14:55:44,393 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 220 transitions. Word has length 56 [2022-10-16 14:55:44,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:44,393 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 220 transitions. [2022-10-16 14:55:44,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 220 transitions. [2022-10-16 14:55:44,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 14:55:44,396 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:44,396 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:44,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:44,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 14:55:44,611 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:44,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:44,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1843363512, now seen corresponding path program 1 times [2022-10-16 14:55:44,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:44,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686735058] [2022-10-16 14:55:44,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:44,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-10-16 14:55:44,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:44,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686735058] [2022-10-16 14:55:44,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686735058] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:44,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:55:44,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:55:44,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293656234] [2022-10-16 14:55:44,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:44,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:55:44,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:44,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:55:44,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:55:44,684 INFO L87 Difference]: Start difference. First operand 166 states and 220 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:44,701 INFO L93 Difference]: Finished difference Result 166 states and 220 transitions. [2022-10-16 14:55:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:55:44,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-16 14:55:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:44,703 INFO L225 Difference]: With dead ends: 166 [2022-10-16 14:55:44,703 INFO L226 Difference]: Without dead ends: 165 [2022-10-16 14:55:44,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:55:44,704 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:44,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 106 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:44,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-10-16 14:55:44,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-10-16 14:55:44,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 153 states have (on average 1.3333333333333333) internal successors, (204), 161 states have internal predecessors, (204), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 209 transitions. [2022-10-16 14:55:44,714 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 209 transitions. Word has length 58 [2022-10-16 14:55:44,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:44,714 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 209 transitions. [2022-10-16 14:55:44,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:44,715 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 209 transitions. [2022-10-16 14:55:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 14:55:44,715 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:44,716 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:44,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 14:55:44,716 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting sepErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:44,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:44,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1309694139, now seen corresponding path program 1 times [2022-10-16 14:55:44,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:44,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807929664] [2022-10-16 14:55:44,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:44,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:44,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:44,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807929664] [2022-10-16 14:55:44,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807929664] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:44,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771217407] [2022-10-16 14:55:44,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:44,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:44,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:44,854 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:44,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:55:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:44,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:55:44,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:44,973 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:44,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:55:44,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771217407] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:44,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:55:44,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:55:44,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805197319] [2022-10-16 14:55:44,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:44,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:55:44,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:44,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:55:44,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:55:44,975 INFO L87 Difference]: Start difference. First operand 165 states and 209 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:45,007 INFO L93 Difference]: Finished difference Result 165 states and 209 transitions. [2022-10-16 14:55:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:55:45,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-10-16 14:55:45,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:45,009 INFO L225 Difference]: With dead ends: 165 [2022-10-16 14:55:45,009 INFO L226 Difference]: Without dead ends: 164 [2022-10-16 14:55:45,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:55:45,010 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 16 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:45,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 190 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:45,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-16 14:55:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-10-16 14:55:45,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 153 states have (on average 1.261437908496732) internal successors, (193), 160 states have internal predecessors, (193), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:45,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 198 transitions. [2022-10-16 14:55:45,019 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 198 transitions. Word has length 59 [2022-10-16 14:55:45,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:45,020 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 198 transitions. [2022-10-16 14:55:45,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:45,020 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 198 transitions. [2022-10-16 14:55:45,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 14:55:45,021 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:45,021 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:45,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:45,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 14:55:45,234 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:45,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:45,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1615273511, now seen corresponding path program 2 times [2022-10-16 14:55:45,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:45,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245390686] [2022-10-16 14:55:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:45,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:45,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:45,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245390686] [2022-10-16 14:55:45,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245390686] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:45,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033131461] [2022-10-16 14:55:45,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:55:45,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:45,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:45,389 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:45,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:55:45,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:55:45,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:45,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:55:45,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:45,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:45,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033131461] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:45,593 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:45,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 14:55:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866693614] [2022-10-16 14:55:45,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:45,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:55:45,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:45,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:55:45,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:55:45,596 INFO L87 Difference]: Start difference. First operand 164 states and 198 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:45,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:45,713 INFO L93 Difference]: Finished difference Result 221 states and 271 transitions. [2022-10-16 14:55:45,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:55:45,714 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-16 14:55:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:45,715 INFO L225 Difference]: With dead ends: 221 [2022-10-16 14:55:45,716 INFO L226 Difference]: Without dead ends: 220 [2022-10-16 14:55:45,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2022-10-16 14:55:45,717 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 81 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:45,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 308 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:45,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-16 14:55:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 192. [2022-10-16 14:55:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 181 states have (on average 1.2651933701657458) internal successors, (229), 188 states have internal predecessors, (229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 234 transitions. [2022-10-16 14:55:45,729 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 234 transitions. Word has length 62 [2022-10-16 14:55:45,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:45,730 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 234 transitions. [2022-10-16 14:55:45,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:45,730 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 234 transitions. [2022-10-16 14:55:45,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 14:55:45,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:45,731 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:45,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 14:55:45,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:55:45,944 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:45,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1615273703, now seen corresponding path program 2 times [2022-10-16 14:55:45,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:45,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592196033] [2022-10-16 14:55:45,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:45,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:46,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:46,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592196033] [2022-10-16 14:55:46,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592196033] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:46,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187571424] [2022-10-16 14:55:46,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:55:46,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:46,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:46,121 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:46,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:55:46,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:55:46,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:46,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:55:46,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:46,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:46,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187571424] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:46,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:46,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 14:55:46,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015321832] [2022-10-16 14:55:46,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:46,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:55:46,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:46,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:55:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:55:46,344 INFO L87 Difference]: Start difference. First operand 192 states and 234 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:46,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:46,497 INFO L93 Difference]: Finished difference Result 237 states and 296 transitions. [2022-10-16 14:55:46,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:55:46,497 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-16 14:55:46,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:46,499 INFO L225 Difference]: With dead ends: 237 [2022-10-16 14:55:46,499 INFO L226 Difference]: Without dead ends: 235 [2022-10-16 14:55:46,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:55:46,500 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 63 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:46,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 300 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-10-16 14:55:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 178. [2022-10-16 14:55:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 168 states have (on average 1.244047619047619) internal successors, (209), 174 states have internal predecessors, (209), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 214 transitions. [2022-10-16 14:55:46,511 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 214 transitions. Word has length 62 [2022-10-16 14:55:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:46,512 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 214 transitions. [2022-10-16 14:55:46,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 214 transitions. [2022-10-16 14:55:46,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 14:55:46,513 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:46,513 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:46,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:46,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:55:46,728 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:46,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:46,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1261898848, now seen corresponding path program 1 times [2022-10-16 14:55:46,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:46,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324803273] [2022-10-16 14:55:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:46,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:46,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:46,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324803273] [2022-10-16 14:55:46,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324803273] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:46,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243897833] [2022-10-16 14:55:46,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:46,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:46,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:46,878 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:46,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:55:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:46,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:55:46,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:47,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:47,080 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:47,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243897833] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:47,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:47,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 14:55:47,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939354450] [2022-10-16 14:55:47,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:47,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:55:47,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:47,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:55:47,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:55:47,082 INFO L87 Difference]: Start difference. First operand 178 states and 214 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:47,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:47,308 INFO L93 Difference]: Finished difference Result 276 states and 340 transitions. [2022-10-16 14:55:47,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:55:47,309 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-16 14:55:47,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:47,311 INFO L225 Difference]: With dead ends: 276 [2022-10-16 14:55:47,311 INFO L226 Difference]: Without dead ends: 275 [2022-10-16 14:55:47,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:55:47,312 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 45 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:47,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 326 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:47,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-10-16 14:55:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 218. [2022-10-16 14:55:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 208 states have (on average 1.25) internal successors, (260), 214 states have internal predecessors, (260), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 265 transitions. [2022-10-16 14:55:47,327 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 265 transitions. Word has length 63 [2022-10-16 14:55:47,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:47,327 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 265 transitions. [2022-10-16 14:55:47,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 265 transitions. [2022-10-16 14:55:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 14:55:47,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:47,328 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:47,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:47,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:47,545 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:47,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2067492937, now seen corresponding path program 1 times [2022-10-16 14:55:47,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:47,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311855092] [2022-10-16 14:55:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:47,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:47,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:47,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311855092] [2022-10-16 14:55:47,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311855092] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:47,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066535455] [2022-10-16 14:55:47,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:47,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:47,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:47,747 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:47,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:55:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:47,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:55:47,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:47,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:47,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066535455] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:47,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:47,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2022-10-16 14:55:47,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422997793] [2022-10-16 14:55:48,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:48,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:55:48,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:55:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:55:48,001 INFO L87 Difference]: Start difference. First operand 218 states and 265 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:48,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:48,279 INFO L93 Difference]: Finished difference Result 394 states and 490 transitions. [2022-10-16 14:55:48,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 14:55:48,279 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-16 14:55:48,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:48,282 INFO L225 Difference]: With dead ends: 394 [2022-10-16 14:55:48,282 INFO L226 Difference]: Without dead ends: 393 [2022-10-16 14:55:48,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=270, Invalid=920, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 14:55:48,284 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 113 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:48,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 295 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:48,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-10-16 14:55:48,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 280. [2022-10-16 14:55:48,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 270 states have (on average 1.2555555555555555) internal successors, (339), 276 states have internal predecessors, (339), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:48,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 344 transitions. [2022-10-16 14:55:48,305 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 344 transitions. Word has length 69 [2022-10-16 14:55:48,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:48,305 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 344 transitions. [2022-10-16 14:55:48,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:48,306 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 344 transitions. [2022-10-16 14:55:48,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 14:55:48,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:48,307 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:48,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:48,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:48,521 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:48,522 INFO L85 PathProgramCache]: Analyzing trace with hash -249863246, now seen corresponding path program 1 times [2022-10-16 14:55:48,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:48,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633791047] [2022-10-16 14:55:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:48,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:55:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:55:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:48,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633791047] [2022-10-16 14:55:48,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633791047] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321744259] [2022-10-16 14:55:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:48,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:48,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:48,683 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:48,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:55:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:48,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:55:48,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:48,792 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-10-16 14:55:48,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:55:48,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321744259] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:48,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:55:48,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:55:48,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461718533] [2022-10-16 14:55:48,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:48,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:55:48,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:48,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:55:48,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:55:48,795 INFO L87 Difference]: Start difference. First operand 280 states and 344 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:55:48,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:48,821 INFO L93 Difference]: Finished difference Result 512 states and 638 transitions. [2022-10-16 14:55:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:55:48,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-10-16 14:55:48,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:48,823 INFO L225 Difference]: With dead ends: 512 [2022-10-16 14:55:48,823 INFO L226 Difference]: Without dead ends: 288 [2022-10-16 14:55:48,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:55:48,825 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:48,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 69 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:48,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-10-16 14:55:48,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 282. [2022-10-16 14:55:48,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 272 states have (on average 1.2536764705882353) internal successors, (341), 278 states have internal predecessors, (341), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 346 transitions. [2022-10-16 14:55:48,840 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 346 transitions. Word has length 73 [2022-10-16 14:55:48,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:48,840 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 346 transitions. [2022-10-16 14:55:48,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:55:48,841 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 346 transitions. [2022-10-16 14:55:48,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 14:55:48,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:48,842 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:48,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:49,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:49,058 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:49,059 INFO L85 PathProgramCache]: Analyzing trace with hash 844174031, now seen corresponding path program 1 times [2022-10-16 14:55:49,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:49,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469687020] [2022-10-16 14:55:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:49,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:49,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:55:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:49,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:55:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:49,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:49,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469687020] [2022-10-16 14:55:49,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469687020] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:49,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752437595] [2022-10-16 14:55:49,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:49,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:49,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:49,202 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:49,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:55:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:49,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:55:49,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:49,309 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-10-16 14:55:49,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:55:49,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752437595] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:49,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:55:49,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:55:49,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608281480] [2022-10-16 14:55:49,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:49,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:55:49,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:49,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:55:49,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:55:49,312 INFO L87 Difference]: Start difference. First operand 282 states and 346 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:55:49,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:49,344 INFO L93 Difference]: Finished difference Result 289 states and 353 transitions. [2022-10-16 14:55:49,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:55:49,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 74 [2022-10-16 14:55:49,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:49,347 INFO L225 Difference]: With dead ends: 289 [2022-10-16 14:55:49,347 INFO L226 Difference]: Without dead ends: 288 [2022-10-16 14:55:49,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:55:49,349 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:49,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 69 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:49,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-10-16 14:55:49,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 283. [2022-10-16 14:55:49,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 273 states have (on average 1.2527472527472527) internal successors, (342), 279 states have internal predecessors, (342), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:49,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 347 transitions. [2022-10-16 14:55:49,366 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 347 transitions. Word has length 74 [2022-10-16 14:55:49,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:49,366 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 347 transitions. [2022-10-16 14:55:49,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:55:49,367 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 347 transitions. [2022-10-16 14:55:49,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 14:55:49,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:49,368 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:49,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:49,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 14:55:49,582 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:49,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:49,583 INFO L85 PathProgramCache]: Analyzing trace with hash -497573007, now seen corresponding path program 1 times [2022-10-16 14:55:49,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:49,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606299845] [2022-10-16 14:55:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:49,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:49,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:55:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:49,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:55:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:49,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:49,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606299845] [2022-10-16 14:55:49,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606299845] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:49,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378543170] [2022-10-16 14:55:49,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:49,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:49,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:49,714 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:49,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:55:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:49,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:55:49,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 14:55:49,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:49,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378543170] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:49,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:49,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-10-16 14:55:49,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075954955] [2022-10-16 14:55:49,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:49,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:55:49,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:49,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:55:49,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:55:49,888 INFO L87 Difference]: Start difference. First operand 283 states and 347 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:55:49,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:49,959 INFO L93 Difference]: Finished difference Result 534 states and 664 transitions. [2022-10-16 14:55:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:55:49,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 76 [2022-10-16 14:55:49,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:49,962 INFO L225 Difference]: With dead ends: 534 [2022-10-16 14:55:49,962 INFO L226 Difference]: Without dead ends: 295 [2022-10-16 14:55:49,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:55:49,964 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:49,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 194 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-10-16 14:55:49,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2022-10-16 14:55:49,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 285 states have (on average 1.2280701754385965) internal successors, (350), 291 states have internal predecessors, (350), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 355 transitions. [2022-10-16 14:55:49,983 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 355 transitions. Word has length 76 [2022-10-16 14:55:49,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:49,983 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 355 transitions. [2022-10-16 14:55:49,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:55:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 355 transitions. [2022-10-16 14:55:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 14:55:49,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:49,985 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:50,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:50,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:50,201 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:50,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:50,202 INFO L85 PathProgramCache]: Analyzing trace with hash 630735532, now seen corresponding path program 2 times [2022-10-16 14:55:50,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:50,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578842420] [2022-10-16 14:55:50,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:50,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 5 proven. 40 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-10-16 14:55:50,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:50,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578842420] [2022-10-16 14:55:50,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578842420] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:50,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802328167] [2022-10-16 14:55:50,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:55:50,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:50,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:50,433 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:50,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:55:50,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:55:50,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:50,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:55:50,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-10-16 14:55:50,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-10-16 14:55:50,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802328167] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:50,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:50,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 17 [2022-10-16 14:55:50,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397384505] [2022-10-16 14:55:50,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:50,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:55:50,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:50,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:55:50,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:55:50,722 INFO L87 Difference]: Start difference. First operand 295 states and 355 transitions. Second operand has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:51,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:51,006 INFO L93 Difference]: Finished difference Result 571 states and 709 transitions. [2022-10-16 14:55:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 14:55:51,007 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-16 14:55:51,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:51,011 INFO L225 Difference]: With dead ends: 571 [2022-10-16 14:55:51,011 INFO L226 Difference]: Without dead ends: 570 [2022-10-16 14:55:51,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 14:55:51,013 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 84 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:51,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 229 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:51,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-10-16 14:55:51,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 364. [2022-10-16 14:55:51,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 354 states have (on average 1.2372881355932204) internal successors, (438), 360 states have internal predecessors, (438), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:51,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 443 transitions. [2022-10-16 14:55:51,040 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 443 transitions. Word has length 77 [2022-10-16 14:55:51,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:51,041 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 443 transitions. [2022-10-16 14:55:51,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:51,041 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 443 transitions. [2022-10-16 14:55:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 14:55:51,044 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:51,044 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:51,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:51,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:51,258 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:51,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:51,259 INFO L85 PathProgramCache]: Analyzing trace with hash -985419401, now seen corresponding path program 2 times [2022-10-16 14:55:51,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:51,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929261512] [2022-10-16 14:55:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-10-16 14:55:51,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:51,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929261512] [2022-10-16 14:55:51,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929261512] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:51,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597955373] [2022-10-16 14:55:51,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:55:51,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:51,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:51,531 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:51,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:55:51,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:55:51,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:51,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:55:51,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-10-16 14:55:51,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-10-16 14:55:51,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597955373] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:51,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:51,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:55:51,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370564336] [2022-10-16 14:55:51,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:51,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:55:51,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:51,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:55:51,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:55:51,878 INFO L87 Difference]: Start difference. First operand 364 states and 443 transitions. Second operand has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:52,243 INFO L93 Difference]: Finished difference Result 697 states and 871 transitions. [2022-10-16 14:55:52,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 14:55:52,244 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-10-16 14:55:52,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:52,247 INFO L225 Difference]: With dead ends: 697 [2022-10-16 14:55:52,248 INFO L226 Difference]: Without dead ends: 696 [2022-10-16 14:55:52,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 14:55:52,250 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 108 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:52,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 359 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:52,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-10-16 14:55:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 464. [2022-10-16 14:55:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 454 states have (on average 1.248898678414097) internal successors, (567), 460 states have internal predecessors, (567), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:52,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 572 transitions. [2022-10-16 14:55:52,305 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 572 transitions. Word has length 83 [2022-10-16 14:55:52,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:52,305 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 572 transitions. [2022-10-16 14:55:52,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:52,305 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 572 transitions. [2022-10-16 14:55:52,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 14:55:52,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:52,307 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 7, 6, 6, 6, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:52,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-10-16 14:55:52,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:52,520 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:52,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:52,521 INFO L85 PathProgramCache]: Analyzing trace with hash -133713945, now seen corresponding path program 3 times [2022-10-16 14:55:52,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:52,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473234353] [2022-10-16 14:55:52,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:52,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:52,866 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-10-16 14:55:52,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:52,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473234353] [2022-10-16 14:55:52,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473234353] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:52,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448708863] [2022-10-16 14:55:52,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:55:52,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:52,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:52,869 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:52,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:55:53,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-10-16 14:55:53,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:53,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:55:53,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-10-16 14:55:53,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:53,198 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-10-16 14:55:53,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448708863] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:53,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:53,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2022-10-16 14:55:53,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839544247] [2022-10-16 14:55:53,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:53,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 14:55:53,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:53,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 14:55:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:55:53,201 INFO L87 Difference]: Start difference. First operand 464 states and 572 transitions. Second operand has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:53,564 INFO L93 Difference]: Finished difference Result 1063 states and 1340 transitions. [2022-10-16 14:55:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 14:55:53,565 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-10-16 14:55:53,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:53,571 INFO L225 Difference]: With dead ends: 1063 [2022-10-16 14:55:53,571 INFO L226 Difference]: Without dead ends: 1062 [2022-10-16 14:55:53,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 14:55:53,573 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 99 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:53,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 345 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:53,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-10-16 14:55:53,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 517. [2022-10-16 14:55:53,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 507 states have (on average 1.2544378698224852) internal successors, (636), 513 states have internal predecessors, (636), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:53,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 641 transitions. [2022-10-16 14:55:53,629 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 641 transitions. Word has length 90 [2022-10-16 14:55:53,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:53,629 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 641 transitions. [2022-10-16 14:55:53,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:53,630 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 641 transitions. [2022-10-16 14:55:53,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 14:55:53,631 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:53,632 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 7, 6, 6, 6, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:53,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:53,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 14:55:53,847 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1713067238, now seen corresponding path program 3 times [2022-10-16 14:55:53,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:53,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417894987] [2022-10-16 14:55:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:53,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-10-16 14:55:54,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:54,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417894987] [2022-10-16 14:55:54,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417894987] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:54,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564871944] [2022-10-16 14:55:54,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:55:54,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:54,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:54,142 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:54,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:55:54,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 14:55:54,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:54,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:55:54,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 14:55:54,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:55:54,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564871944] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:54,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:55:54,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2022-10-16 14:55:54,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135898121] [2022-10-16 14:55:54,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:54,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:55:54,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:54,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:55:54,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:55:54,294 INFO L87 Difference]: Start difference. First operand 517 states and 641 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:54,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:54,380 INFO L93 Difference]: Finished difference Result 593 states and 733 transitions. [2022-10-16 14:55:54,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:55:54,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-10-16 14:55:54,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:54,384 INFO L225 Difference]: With dead ends: 593 [2022-10-16 14:55:54,384 INFO L226 Difference]: Without dead ends: 592 [2022-10-16 14:55:54,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:55:54,385 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 25 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:54,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 135 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:54,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-10-16 14:55:54,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 527. [2022-10-16 14:55:54,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 517 states have (on average 1.253384912959381) internal successors, (648), 523 states have internal predecessors, (648), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 653 transitions. [2022-10-16 14:55:54,449 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 653 transitions. Word has length 91 [2022-10-16 14:55:54,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:54,449 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 653 transitions. [2022-10-16 14:55:54,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:54,450 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 653 transitions. [2022-10-16 14:55:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 14:55:54,451 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:54,451 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:54,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:54,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:55:54,665 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:54,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:54,666 INFO L85 PathProgramCache]: Analyzing trace with hash 146121440, now seen corresponding path program 4 times [2022-10-16 14:55:54,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:54,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909946969] [2022-10-16 14:55:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:54,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:54,955 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 14:55:54,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:54,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909946969] [2022-10-16 14:55:54,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909946969] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:54,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647433279] [2022-10-16 14:55:54,956 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:55:54,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:54,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:54,958 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:54,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 14:55:55,081 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:55:55,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:55,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:55:55,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 14:55:55,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:55,340 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 14:55:55,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647433279] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:55,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:55,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 25 [2022-10-16 14:55:55,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084255806] [2022-10-16 14:55:55,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:55,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:55:55,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:55,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:55:55,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:55:55,343 INFO L87 Difference]: Start difference. First operand 527 states and 653 transitions. Second operand has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:55,749 INFO L93 Difference]: Finished difference Result 1096 states and 1372 transitions. [2022-10-16 14:55:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 14:55:55,750 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-10-16 14:55:55,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:55,757 INFO L225 Difference]: With dead ends: 1096 [2022-10-16 14:55:55,758 INFO L226 Difference]: Without dead ends: 1095 [2022-10-16 14:55:55,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 14:55:55,760 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 118 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:55,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 354 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:55:55,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2022-10-16 14:55:55,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 605. [2022-10-16 14:55:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 595 states have (on average 1.2605042016806722) internal successors, (750), 601 states have internal predecessors, (750), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:55,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 755 transitions. [2022-10-16 14:55:55,826 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 755 transitions. Word has length 91 [2022-10-16 14:55:55,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:55,826 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 755 transitions. [2022-10-16 14:55:55,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 755 transitions. [2022-10-16 14:55:55,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-16 14:55:55,828 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:55,828 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 8, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:55,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:56,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 14:55:56,043 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash -409929417, now seen corresponding path program 4 times [2022-10-16 14:55:56,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:56,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318801770] [2022-10-16 14:55:56,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:56,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:55:56,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:56,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318801770] [2022-10-16 14:55:56,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318801770] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:56,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776955424] [2022-10-16 14:55:56,434 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:55:56,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:56,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:56,436 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:56,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 14:55:56,568 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:55:56,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:56,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:55:56,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 2 proven. 151 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:56,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 2 proven. 151 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-10-16 14:55:56,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776955424] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:56,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:56,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 33 [2022-10-16 14:55:56,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262252094] [2022-10-16 14:55:56,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:56,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 14:55:56,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:56,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 14:55:56,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:55:56,961 INFO L87 Difference]: Start difference. First operand 605 states and 755 transitions. Second operand has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:57,577 INFO L93 Difference]: Finished difference Result 1660 states and 2091 transitions. [2022-10-16 14:55:57,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-16 14:55:57,578 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-10-16 14:55:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:57,586 INFO L225 Difference]: With dead ends: 1660 [2022-10-16 14:55:57,586 INFO L226 Difference]: Without dead ends: 1659 [2022-10-16 14:55:57,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=832, Invalid=2708, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 14:55:57,590 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 177 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:57,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 451 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:55:57,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-10-16 14:55:57,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1279. [2022-10-16 14:55:57,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1269 states have (on average 1.272655634357762) internal successors, (1615), 1275 states have internal predecessors, (1615), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:57,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1620 transitions. [2022-10-16 14:55:57,718 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1620 transitions. Word has length 97 [2022-10-16 14:55:57,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:57,719 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1620 transitions. [2022-10-16 14:55:57,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:57,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1620 transitions. [2022-10-16 14:55:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 14:55:57,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:57,723 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:57,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:57,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:57,939 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:57,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:57,939 INFO L85 PathProgramCache]: Analyzing trace with hash 959912113, now seen corresponding path program 2 times [2022-10-16 14:55:57,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:57,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091324015] [2022-10-16 14:55:57,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:57,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:58,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:55:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:58,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 14:55:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-10-16 14:55:58,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:58,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091324015] [2022-10-16 14:55:58,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091324015] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:55:58,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:55:58,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:55:58,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374475345] [2022-10-16 14:55:58,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:55:58,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:55:58,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:58,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:55:58,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:55:58,126 INFO L87 Difference]: Start difference. First operand 1279 states and 1620 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:55:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:58,277 INFO L93 Difference]: Finished difference Result 1284 states and 1625 transitions. [2022-10-16 14:55:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:55:58,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2022-10-16 14:55:58,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:58,284 INFO L225 Difference]: With dead ends: 1284 [2022-10-16 14:55:58,284 INFO L226 Difference]: Without dead ends: 1282 [2022-10-16 14:55:58,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:55:58,286 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:58,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 101 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:55:58,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-10-16 14:55:58,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1282. [2022-10-16 14:55:58,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1272 states have (on average 1.2720125786163523) internal successors, (1618), 1278 states have internal predecessors, (1618), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:55:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1623 transitions. [2022-10-16 14:55:58,422 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1623 transitions. Word has length 104 [2022-10-16 14:55:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:58,423 INFO L495 AbstractCegarLoop]: Abstraction has 1282 states and 1623 transitions. [2022-10-16 14:55:58,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:55:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1623 transitions. [2022-10-16 14:55:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 14:55:58,426 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:58,427 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 9, 8, 8, 8, 6, 6, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:58,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-10-16 14:55:58,427 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:55:58,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:58,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2100032032, now seen corresponding path program 5 times [2022-10-16 14:55:58,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:58,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362056811] [2022-10-16 14:55:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:58,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 10 proven. 153 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-10-16 14:55:58,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:58,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362056811] [2022-10-16 14:55:58,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362056811] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:58,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936469044] [2022-10-16 14:55:58,848 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:55:58,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:58,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:58,850 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:58,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 14:55:59,154 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-10-16 14:55:59,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:59,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:55:59,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-10-16 14:55:59,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-10-16 14:55:59,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936469044] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:59,482 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:59,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 14:55:59,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110463089] [2022-10-16 14:55:59,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:59,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:55:59,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:59,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:55:59,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:55:59,484 INFO L87 Difference]: Start difference. First operand 1282 states and 1623 transitions. Second operand has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:00,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:00,138 INFO L93 Difference]: Finished difference Result 3828 states and 4874 transitions. [2022-10-16 14:56:00,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-16 14:56:00,138 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-10-16 14:56:00,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:00,156 INFO L225 Difference]: With dead ends: 3828 [2022-10-16 14:56:00,156 INFO L226 Difference]: Without dead ends: 3827 [2022-10-16 14:56:00,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:56:00,160 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 116 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:00,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 438 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:00,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2022-10-16 14:56:00,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 2562. [2022-10-16 14:56:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2562 states, 2552 states have (on average 1.2782131661442007) internal successors, (3262), 2558 states have internal predecessors, (3262), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3267 transitions. [2022-10-16 14:56:00,425 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3267 transitions. Word has length 105 [2022-10-16 14:56:00,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:00,425 INFO L495 AbstractCegarLoop]: Abstraction has 2562 states and 3267 transitions. [2022-10-16 14:56:00,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:00,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3267 transitions. [2022-10-16 14:56:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 14:56:00,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:00,430 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:00,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:00,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:00,645 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:00,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:00,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1493197868, now seen corresponding path program 6 times [2022-10-16 14:56:00,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:00,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144265261] [2022-10-16 14:56:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:00,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 14:56:01,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:01,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144265261] [2022-10-16 14:56:01,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144265261] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:01,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070819751] [2022-10-16 14:56:01,072 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:56:01,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:01,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:01,073 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:01,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 14:56:01,479 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-10-16 14:56:01,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:01,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:56:01,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 14:56:01,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 14:56:01,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070819751] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:01,882 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:01,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2022-10-16 14:56:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852728806] [2022-10-16 14:56:01,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:01,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 14:56:01,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:01,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 14:56:01,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:56:01,885 INFO L87 Difference]: Start difference. First operand 2562 states and 3267 transitions. Second operand has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:02,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:02,835 INFO L93 Difference]: Finished difference Result 5649 states and 7148 transitions. [2022-10-16 14:56:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 14:56:02,835 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-10-16 14:56:02,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:02,862 INFO L225 Difference]: With dead ends: 5649 [2022-10-16 14:56:02,862 INFO L226 Difference]: Without dead ends: 5648 [2022-10-16 14:56:02,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=814, Invalid=2726, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 14:56:02,868 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 227 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:02,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 366 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:02,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5648 states. [2022-10-16 14:56:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5648 to 3769. [2022-10-16 14:56:03,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3769 states, 3759 states have (on average 1.280925778132482) internal successors, (4815), 3765 states have internal predecessors, (4815), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 4820 transitions. [2022-10-16 14:56:03,307 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 4820 transitions. Word has length 105 [2022-10-16 14:56:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:03,307 INFO L495 AbstractCegarLoop]: Abstraction has 3769 states and 4820 transitions. [2022-10-16 14:56:03,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:03,308 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 4820 transitions. [2022-10-16 14:56:03,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 14:56:03,312 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:03,312 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:03,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:03,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-16 14:56:03,527 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:03,528 INFO L85 PathProgramCache]: Analyzing trace with hash 849571800, now seen corresponding path program 1 times [2022-10-16 14:56:03,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:03,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872880345] [2022-10-16 14:56:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:03,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:56:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 14:56:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-10-16 14:56:03,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:03,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872880345] [2022-10-16 14:56:03,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872880345] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:03,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:03,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:56:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816434503] [2022-10-16 14:56:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:03,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:56:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:03,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:56:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:56:03,636 INFO L87 Difference]: Start difference. First operand 3769 states and 4820 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:03,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:03,979 INFO L93 Difference]: Finished difference Result 3769 states and 4820 transitions. [2022-10-16 14:56:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:56:03,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 107 [2022-10-16 14:56:03,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:03,997 INFO L225 Difference]: With dead ends: 3769 [2022-10-16 14:56:03,997 INFO L226 Difference]: Without dead ends: 3768 [2022-10-16 14:56:03,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:56:04,000 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:04,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:04,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2022-10-16 14:56:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3768. [2022-10-16 14:56:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3759 states have (on average 1.2806597499334929) internal successors, (4814), 3764 states have internal predecessors, (4814), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:04,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4819 transitions. [2022-10-16 14:56:04,373 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4819 transitions. Word has length 107 [2022-10-16 14:56:04,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:04,374 INFO L495 AbstractCegarLoop]: Abstraction has 3768 states and 4819 transitions. [2022-10-16 14:56:04,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:04,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4819 transitions. [2022-10-16 14:56:04,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 14:56:04,379 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:04,379 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:04,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-16 14:56:04,379 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:04,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:04,380 INFO L85 PathProgramCache]: Analyzing trace with hash 566922089, now seen corresponding path program 1 times [2022-10-16 14:56:04,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:04,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024522394] [2022-10-16 14:56:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:04,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:04,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:56:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 14:56:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-10-16 14:56:04,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:04,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024522394] [2022-10-16 14:56:04,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024522394] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:04,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914974659] [2022-10-16 14:56:04,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:04,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:04,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:04,513 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:04,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 14:56:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:04,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:56:04,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-10-16 14:56:04,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-10-16 14:56:04,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914974659] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:04,812 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:04,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2022-10-16 14:56:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900569812] [2022-10-16 14:56:04,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:04,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 14:56:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:04,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 14:56:04,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:56:04,814 INFO L87 Difference]: Start difference. First operand 3768 states and 4819 transitions. Second operand has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 14:56:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:05,385 INFO L93 Difference]: Finished difference Result 8150 states and 10404 transitions. [2022-10-16 14:56:05,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 14:56:05,386 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 108 [2022-10-16 14:56:05,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:05,405 INFO L225 Difference]: With dead ends: 8150 [2022-10-16 14:56:05,405 INFO L226 Difference]: Without dead ends: 4426 [2022-10-16 14:56:05,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:56:05,419 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 110 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:05,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 310 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:05,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2022-10-16 14:56:05,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4421. [2022-10-16 14:56:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4421 states, 4412 states have (on average 1.2490933816863101) internal successors, (5511), 4417 states have internal predecessors, (5511), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4421 states to 4421 states and 5516 transitions. [2022-10-16 14:56:05,816 INFO L78 Accepts]: Start accepts. Automaton has 4421 states and 5516 transitions. Word has length 108 [2022-10-16 14:56:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:05,816 INFO L495 AbstractCegarLoop]: Abstraction has 4421 states and 5516 transitions. [2022-10-16 14:56:05,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 14:56:05,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4421 states and 5516 transitions. [2022-10-16 14:56:05,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 14:56:05,823 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:05,823 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 8, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:05,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:06,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-10-16 14:56:06,040 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:06,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:06,041 INFO L85 PathProgramCache]: Analyzing trace with hash 10874661, now seen corresponding path program 5 times [2022-10-16 14:56:06,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:06,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141648985] [2022-10-16 14:56:06,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:06,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-10-16 14:56:06,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:06,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141648985] [2022-10-16 14:56:06,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141648985] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:06,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602424240] [2022-10-16 14:56:06,446 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:56:06,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:06,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:06,449 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:06,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 14:56:06,678 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-10-16 14:56:06,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:06,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 14:56:06,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-10-16 14:56:06,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:07,098 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-10-16 14:56:07,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602424240] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:07,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:07,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-10-16 14:56:07,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416579375] [2022-10-16 14:56:07,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:07,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 14:56:07,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:07,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 14:56:07,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=769, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:56:07,101 INFO L87 Difference]: Start difference. First operand 4421 states and 5516 transitions. Second operand has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:08,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:08,257 INFO L93 Difference]: Finished difference Result 10403 states and 13068 transitions. [2022-10-16 14:56:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 14:56:08,258 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-10-16 14:56:08,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:08,284 INFO L225 Difference]: With dead ends: 10403 [2022-10-16 14:56:08,284 INFO L226 Difference]: Without dead ends: 10402 [2022-10-16 14:56:08,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=733, Invalid=2689, Unknown=0, NotChecked=0, Total=3422 [2022-10-16 14:56:08,292 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 172 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:08,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 535 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:56:08,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10402 states. [2022-10-16 14:56:09,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10402 to 7708. [2022-10-16 14:56:09,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7708 states, 7699 states have (on average 1.2643200415638394) internal successors, (9734), 7704 states have internal predecessors, (9734), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 9739 transitions. [2022-10-16 14:56:09,202 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 9739 transitions. Word has length 111 [2022-10-16 14:56:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:09,203 INFO L495 AbstractCegarLoop]: Abstraction has 7708 states and 9739 transitions. [2022-10-16 14:56:09,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:09,204 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 9739 transitions. [2022-10-16 14:56:09,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-16 14:56:09,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:09,215 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:09,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:09,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 14:56:09,429 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:09,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:09,430 INFO L85 PathProgramCache]: Analyzing trace with hash 537123168, now seen corresponding path program 7 times [2022-10-16 14:56:09,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:09,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591184668] [2022-10-16 14:56:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:09,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 5 proven. 318 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 14:56:09,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:09,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591184668] [2022-10-16 14:56:09,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591184668] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:09,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808388272] [2022-10-16 14:56:09,999 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:56:10,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:10,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:10,001 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:10,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 14:56:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:10,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 14:56:10,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 14:56:10,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:10,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808388272] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:10,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:10,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [20] total 42 [2022-10-16 14:56:10,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450765164] [2022-10-16 14:56:10,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:10,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 14:56:10,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:10,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 14:56:10,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1469, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:56:10,618 INFO L87 Difference]: Start difference. First operand 7708 states and 9739 transitions. Second operand has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:11,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:11,449 INFO L93 Difference]: Finished difference Result 13702 states and 17100 transitions. [2022-10-16 14:56:11,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:56:11,450 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-10-16 14:56:11,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:11,474 INFO L225 Difference]: With dead ends: 13702 [2022-10-16 14:56:11,475 INFO L226 Difference]: Without dead ends: 6036 [2022-10-16 14:56:11,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=428, Invalid=2224, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:56:11,539 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 66 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:11,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 511 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2022-10-16 14:56:11,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 160. [2022-10-16 14:56:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 154 states have (on average 1.1103896103896105) internal successors, (171), 156 states have internal predecessors, (171), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:11,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 175 transitions. [2022-10-16 14:56:11,647 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 175 transitions. Word has length 119 [2022-10-16 14:56:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:11,647 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 175 transitions. [2022-10-16 14:56:11,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 175 transitions. [2022-10-16 14:56:11,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 14:56:11,649 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:11,649 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:11,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:11,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:11,865 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:11,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:11,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1216481269, now seen corresponding path program 1 times [2022-10-16 14:56:11,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:11,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201883322] [2022-10-16 14:56:11,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:11,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:56:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 14:56:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:12,016 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-10-16 14:56:12,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:12,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201883322] [2022-10-16 14:56:12,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201883322] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:12,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:12,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:12,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444739069] [2022-10-16 14:56:12,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:12,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:12,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:12,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:12,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:12,019 INFO L87 Difference]: Start difference. First operand 160 states and 175 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:12,095 INFO L93 Difference]: Finished difference Result 160 states and 175 transitions. [2022-10-16 14:56:12,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:12,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 166 [2022-10-16 14:56:12,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:12,097 INFO L225 Difference]: With dead ends: 160 [2022-10-16 14:56:12,098 INFO L226 Difference]: Without dead ends: 159 [2022-10-16 14:56:12,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:12,099 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:12,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 78 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:12,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-10-16 14:56:12,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-10-16 14:56:12,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 1.103896103896104) internal successors, (170), 155 states have internal predecessors, (170), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 174 transitions. [2022-10-16 14:56:12,162 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 174 transitions. Word has length 166 [2022-10-16 14:56:12,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:12,163 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 174 transitions. [2022-10-16 14:56:12,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 174 transitions. [2022-10-16 14:56:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-10-16 14:56:12,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:12,164 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:12,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-10-16 14:56:12,165 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash 943786396, now seen corresponding path program 1 times [2022-10-16 14:56:12,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:12,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211746083] [2022-10-16 14:56:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:12,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:56:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 14:56:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:12,336 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2022-10-16 14:56:12,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:12,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211746083] [2022-10-16 14:56:12,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211746083] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:12,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:12,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:12,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97123148] [2022-10-16 14:56:12,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:12,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:12,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:12,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:12,340 INFO L87 Difference]: Start difference. First operand 159 states and 174 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:12,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:12,420 INFO L93 Difference]: Finished difference Result 159 states and 174 transitions. [2022-10-16 14:56:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:12,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 167 [2022-10-16 14:56:12,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:12,421 INFO L225 Difference]: With dead ends: 159 [2022-10-16 14:56:12,421 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 14:56:12,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:12,423 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:12,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 78 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:12,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 14:56:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 14:56:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 14:56:12,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 167 [2022-10-16 14:56:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:12,424 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 14:56:12,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:12,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 14:56:12,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 14:56:12,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-10-16 14:56:12,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-10-16 14:56:12,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-10-16 14:56:12,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-10-16 14:56:12,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-10-16 14:56:12,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-10-16 14:56:12,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-10-16 14:56:12,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-10-16 14:56:12,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-10-16 14:56:12,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-10-16 14:56:12,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-10-16 14:56:12,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sepErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-10-16 14:56:12,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-10-16 14:56:12,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.