/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-new/half.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:43:19,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:43:19,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:43:19,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 21:43:19,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:43:19,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:43:19,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:43:19,987 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 [2022-10-15 21:43:20,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:43:20,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:43:20,021 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:43:20,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:43:20,022 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:43:20,022 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:43:20,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:43:20,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:43:20,023 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:43:20,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:43:20,024 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:43:20,024 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:43:20,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:43:20,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:43:20,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:43:20,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:43:20,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:43:20,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:43:20,026 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:43:20,026 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:43:20,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:43:20,026 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:43:20,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:43:20,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:43:20,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:43:20,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:43:20,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:43:20,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:43:20,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:43:20,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:43:20,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:43:20,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:43:20,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:43:20,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:43:20,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:43:20,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:43:20,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:43:20,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:43:20,409 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:43:20,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/half.i [2022-10-15 21:43:20,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd6a85a85/643c807506224a2bb8ba5bbc733b48c3/FLAGc922c8d99 [2022-10-15 21:43:21,039 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:43:21,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/half.i [2022-10-15 21:43:21,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd6a85a85/643c807506224a2bb8ba5bbc733b48c3/FLAGc922c8d99 [2022-10-15 21:43:21,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd6a85a85/643c807506224a2bb8ba5bbc733b48c3 [2022-10-15 21:43:21,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:43:21,409 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:43:21,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:43:21,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:43:21,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:43:21,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bc5310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21, skipping insertion in model container [2022-10-15 21:43:21,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:43:21,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:43:21,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/half.i[891,904] [2022-10-15 21:43:21,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:43:21,681 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:43:21,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/half.i[891,904] [2022-10-15 21:43:21,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:43:21,714 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:43:21,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21 WrapperNode [2022-10-15 21:43:21,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:43:21,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:43:21,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:43:21,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:43:21,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,751 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-10-15 21:43:21,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:43:21,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:43:21,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:43:21,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:43:21,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:43:21,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:43:21,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:43:21,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:43:21,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (1/1) ... [2022-10-15 21:43:21,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:43:21,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:21,821 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) [2022-10-15 21:43:21,841 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 [2022-10-15 21:43:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:43:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:43:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:43:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:43:21,973 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:43:21,975 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:43:22,142 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:43:22,154 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:43:22,158 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 21:43:22,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:43:22 BoogieIcfgContainer [2022-10-15 21:43:22,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:43:22,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:43:22,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:43:22,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:43:22,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:43:21" (1/3) ... [2022-10-15 21:43:22,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514c0133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:43:22, skipping insertion in model container [2022-10-15 21:43:22,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:43:21" (2/3) ... [2022-10-15 21:43:22,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514c0133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:43:22, skipping insertion in model container [2022-10-15 21:43:22,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:43:22" (3/3) ... [2022-10-15 21:43:22,179 INFO L112 eAbstractionObserver]: Analyzing ICFG half.i [2022-10-15 21:43:22,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:43:22,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-15 21:43:22,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:43:22,318 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;@7cce64ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:43:22,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-15 21:43:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:22,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 21:43:22,330 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:22,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 21:43:22,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:22,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:22,338 INFO L85 PathProgramCache]: Analyzing trace with hash 925671, now seen corresponding path program 1 times [2022-10-15 21:43:22,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:22,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992922616] [2022-10-15 21:43:22,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:22,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:22,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:22,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992922616] [2022-10-15 21:43:22,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992922616] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:43:22,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:43:22,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:43:22,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056501339] [2022-10-15 21:43:22,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:43:22,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:43:22,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:22,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:43:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:43:22,595 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:22,671 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-10-15 21:43:22,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:43:22,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 21:43:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:22,699 INFO L225 Difference]: With dead ends: 35 [2022-10-15 21:43:22,699 INFO L226 Difference]: Without dead ends: 17 [2022-10-15 21:43:22,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:43:22,709 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:22,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 25 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:43:22,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-10-15 21:43:22,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-10-15 21:43:22,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-10-15 21:43:22,742 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2022-10-15 21:43:22,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:22,743 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-10-15 21:43:22,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-10-15 21:43:22,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 21:43:22,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:22,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 21:43:22,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:43:22,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:22,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:22,746 INFO L85 PathProgramCache]: Analyzing trace with hash 28695845, now seen corresponding path program 1 times [2022-10-15 21:43:22,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:22,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497862830] [2022-10-15 21:43:22,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:22,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:22,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:22,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497862830] [2022-10-15 21:43:22,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497862830] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:43:22,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:43:22,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:43:22,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994089899] [2022-10-15 21:43:22,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:43:22,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:43:22,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:22,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:43:22,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:43:22,802 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:22,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:22,813 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-10-15 21:43:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:43:22,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 21:43:22,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:22,815 INFO L225 Difference]: With dead ends: 17 [2022-10-15 21:43:22,815 INFO L226 Difference]: Without dead ends: 16 [2022-10-15 21:43:22,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:43:22,818 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:22,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:43:22,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-15 21:43:22,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-15 21:43:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-10-15 21:43:22,824 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 5 [2022-10-15 21:43:22,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:22,824 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-10-15 21:43:22,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:22,825 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-10-15 21:43:22,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 21:43:22,825 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:22,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:43:22,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:43:22,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:22,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:22,827 INFO L85 PathProgramCache]: Analyzing trace with hash 179475246, now seen corresponding path program 1 times [2022-10-15 21:43:22,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:22,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908226785] [2022-10-15 21:43:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:22,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:22,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:22,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908226785] [2022-10-15 21:43:22,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908226785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:43:22,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:43:22,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:43:22,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418789700] [2022-10-15 21:43:22,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:43:22,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:43:22,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:22,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:43:22,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:43:22,948 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:22,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:22,983 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-10-15 21:43:22,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:43:22,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 21:43:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:22,985 INFO L225 Difference]: With dead ends: 29 [2022-10-15 21:43:22,985 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 21:43:22,985 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 [2022-10-15 21:43:22,987 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:22,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 38 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:43:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 21:43:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-10-15 21:43:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.380952380952381) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-10-15 21:43:23,003 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 8 [2022-10-15 21:43:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:23,003 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-10-15 21:43:23,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:23,004 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-10-15 21:43:23,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:43:23,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:23,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:43:23,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:43:23,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:23,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:23,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1268771344, now seen corresponding path program 1 times [2022-10-15 21:43:23,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:23,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689361265] [2022-10-15 21:43:23,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:23,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:23,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689361265] [2022-10-15 21:43:23,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689361265] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:43:23,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:43:23,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:43:23,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950631183] [2022-10-15 21:43:23,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:43:23,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:43:23,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:23,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:43:23,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:43:23,166 INFO L87 Difference]: Start difference. First operand 25 states and 29 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) [2022-10-15 21:43:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:23,230 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-10-15 21:43:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:43:23,231 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 [2022-10-15 21:43:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:23,234 INFO L225 Difference]: With dead ends: 47 [2022-10-15 21:43:23,234 INFO L226 Difference]: Without dead ends: 25 [2022-10-15 21:43:23,237 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 [2022-10-15 21:43:23,241 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:23,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:43:23,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-15 21:43:23,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-15 21:43:23,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-10-15 21:43:23,255 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 9 [2022-10-15 21:43:23,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:23,256 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-10-15 21:43:23,257 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) [2022-10-15 21:43:23,257 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-10-15 21:43:23,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 21:43:23,258 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:23,258 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:43:23,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:43:23,258 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:23,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:23,260 INFO L85 PathProgramCache]: Analyzing trace with hash -170850179, now seen corresponding path program 1 times [2022-10-15 21:43:23,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:23,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525652856] [2022-10-15 21:43:23,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:23,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:23,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525652856] [2022-10-15 21:43:23,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525652856] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:23,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423000081] [2022-10-15 21:43:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:23,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:23,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:23,453 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) [2022-10-15 21:43:23,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:43:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:23,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:43:23,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:23,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:43:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:23,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423000081] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:43:23,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:43:23,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 21:43:23,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825825719] [2022-10-15 21:43:23,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:43:23,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 21:43:23,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 21:43:23,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:43:23,678 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:23,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:23,796 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2022-10-15 21:43:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 21:43:23,797 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-15 21:43:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:23,799 INFO L225 Difference]: With dead ends: 62 [2022-10-15 21:43:23,799 INFO L226 Difference]: Without dead ends: 61 [2022-10-15 21:43:23,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-15 21:43:23,801 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 38 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:23,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 98 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:43:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-15 21:43:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 51. [2022-10-15 21:43:23,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 50 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-10-15 21:43:23,812 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 17 [2022-10-15 21:43:23,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:23,813 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-10-15 21:43:23,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-10-15 21:43:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 21:43:23,814 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:23,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:43:23,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:24,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:24,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:24,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:24,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1001388197, now seen corresponding path program 1 times [2022-10-15 21:43:24,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:24,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317645913] [2022-10-15 21:43:24,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:24,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:24,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:24,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317645913] [2022-10-15 21:43:24,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317645913] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:24,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263074399] [2022-10-15 21:43:24,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:24,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:24,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:24,212 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) [2022-10-15 21:43:24,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:43:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:24,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:43:24,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:24,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:43:24,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263074399] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:43:24,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:43:24,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 21:43:24,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544276823] [2022-10-15 21:43:24,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:43:24,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:43:24,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:24,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:43:24,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:43:24,316 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:24,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:24,349 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2022-10-15 21:43:24,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:43:24,349 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-15 21:43:24,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:24,352 INFO L225 Difference]: With dead ends: 51 [2022-10-15 21:43:24,352 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 21:43:24,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:43:24,354 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:24,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 48 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:43:24,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 21:43:24,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-15 21:43:24,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 49 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-10-15 21:43:24,364 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 18 [2022-10-15 21:43:24,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:24,364 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-10-15 21:43:24,365 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:24,365 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-10-15 21:43:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 21:43:24,366 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:24,366 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:43:24,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:24,580 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,SelfDestructingSolverStorable5 [2022-10-15 21:43:24,581 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:24,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:24,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1001382239, now seen corresponding path program 1 times [2022-10-15 21:43:24,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:24,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378289514] [2022-10-15 21:43:24,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:24,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:24,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:24,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378289514] [2022-10-15 21:43:24,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378289514] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:24,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785910574] [2022-10-15 21:43:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:24,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:24,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:24,667 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) [2022-10-15 21:43:24,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:43:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:24,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:43:24,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:24,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:43:24,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:24,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785910574] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:43:24,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:43:24,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 21:43:24,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031833531] [2022-10-15 21:43:24,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:43:24,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 21:43:24,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:24,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 21:43:24,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:43:24,833 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:24,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:24,972 INFO L93 Difference]: Finished difference Result 160 states and 202 transitions. [2022-10-15 21:43:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 21:43:24,973 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-15 21:43:24,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:24,975 INFO L225 Difference]: With dead ends: 160 [2022-10-15 21:43:24,975 INFO L226 Difference]: Without dead ends: 159 [2022-10-15 21:43:24,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2022-10-15 21:43:24,976 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 50 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:24,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 43 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:43:24,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-10-15 21:43:24,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 149. [2022-10-15 21:43:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 146 states have (on average 1.2465753424657535) internal successors, (182), 148 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:24,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 182 transitions. [2022-10-15 21:43:24,997 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 182 transitions. Word has length 18 [2022-10-15 21:43:24,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:24,998 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 182 transitions. [2022-10-15 21:43:24,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:24,998 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 182 transitions. [2022-10-15 21:43:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 21:43:24,999 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:24,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:43:25,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:25,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:25,214 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:25,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:25,216 INFO L85 PathProgramCache]: Analyzing trace with hash -978078273, now seen corresponding path program 1 times [2022-10-15 21:43:25,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:25,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464111557] [2022-10-15 21:43:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:25,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:25,282 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:25,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:25,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464111557] [2022-10-15 21:43:25,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464111557] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:25,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95592473] [2022-10-15 21:43:25,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:25,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:25,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:25,284 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) [2022-10-15 21:43:25,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:43:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:25,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:43:25,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:25,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:43:25,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95592473] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:43:25,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:43:25,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 21:43:25,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596329332] [2022-10-15 21:43:25,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:43:25,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:43:25,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:25,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:43:25,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:43:25,379 INFO L87 Difference]: Start difference. First operand 149 states and 182 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:25,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:25,425 INFO L93 Difference]: Finished difference Result 149 states and 182 transitions. [2022-10-15 21:43:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:43:25,425 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-15 21:43:25,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:25,427 INFO L225 Difference]: With dead ends: 149 [2022-10-15 21:43:25,427 INFO L226 Difference]: Without dead ends: 148 [2022-10-15 21:43:25,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:43:25,428 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:25,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 39 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:43:25,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-15 21:43:25,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-10-15 21:43:25,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.1506849315068493) internal successors, (168), 147 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 168 transitions. [2022-10-15 21:43:25,443 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 168 transitions. Word has length 19 [2022-10-15 21:43:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:25,443 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 168 transitions. [2022-10-15 21:43:25,443 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 168 transitions. [2022-10-15 21:43:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 21:43:25,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:25,445 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1] [2022-10-15 21:43:25,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:25,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:25,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:25,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash -799976560, now seen corresponding path program 2 times [2022-10-15 21:43:25,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:25,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211045303] [2022-10-15 21:43:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:25,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:25,851 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:25,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:25,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211045303] [2022-10-15 21:43:25,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211045303] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:25,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594378817] [2022-10-15 21:43:25,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:43:25,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:25,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:25,854 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) [2022-10-15 21:43:25,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:43:25,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 21:43:25,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:43:25,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:43:25,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-15 21:43:25,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:43:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-15 21:43:26,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594378817] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:43:26,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:43:26,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-15 21:43:26,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128553285] [2022-10-15 21:43:26,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:43:26,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 21:43:26,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:26,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 21:43:26,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-15 21:43:26,125 INFO L87 Difference]: Start difference. First operand 148 states and 168 transitions. Second operand has 18 states, 17 states have (on average 4.176470588235294) internal successors, (71), 18 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:26,365 INFO L93 Difference]: Finished difference Result 249 states and 285 transitions. [2022-10-15 21:43:26,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 21:43:26,366 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.176470588235294) internal successors, (71), 18 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-15 21:43:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:26,367 INFO L225 Difference]: With dead ends: 249 [2022-10-15 21:43:26,368 INFO L226 Difference]: Without dead ends: 248 [2022-10-15 21:43:26,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-15 21:43:26,369 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 90 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:26,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 44 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:43:26,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-10-15 21:43:26,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 45. [2022-10-15 21:43:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-15 21:43:26,379 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 41 [2022-10-15 21:43:26,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:26,380 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-15 21:43:26,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.176470588235294) internal successors, (71), 18 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-15 21:43:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 21:43:26,382 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:26,382 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-15 21:43:26,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:26,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:26,596 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:26,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:26,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2135872274, now seen corresponding path program 2 times [2022-10-15 21:43:26,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:26,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751351624] [2022-10-15 21:43:26,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:26,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:26,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:26,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751351624] [2022-10-15 21:43:26,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751351624] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432087962] [2022-10-15 21:43:26,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:43:26,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:26,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:26,796 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) [2022-10-15 21:43:26,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:43:26,845 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:43:26,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:43:26,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:43:26,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:26,936 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:26,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:43:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:27,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432087962] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:43:27,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:43:27,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-15 21:43:27,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146051777] [2022-10-15 21:43:27,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:43:27,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-15 21:43:27,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:27,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-15 21:43:27,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-15 21:43:27,118 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 24 states, 23 states have (on average 4.130434782608695) internal successors, (95), 24 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:27,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:27,303 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2022-10-15 21:43:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-15 21:43:27,304 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.130434782608695) internal successors, (95), 24 states have internal predecessors, (95), 0 states have call successors, (0), 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 44 [2022-10-15 21:43:27,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:27,305 INFO L225 Difference]: With dead ends: 101 [2022-10-15 21:43:27,305 INFO L226 Difference]: Without dead ends: 100 [2022-10-15 21:43:27,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 21:43:27,306 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 88 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:27,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 140 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:43:27,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-15 21:43:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2022-10-15 21:43:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1122448979591837) internal successors, (109), 98 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:27,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 109 transitions. [2022-10-15 21:43:27,316 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 109 transitions. Word has length 44 [2022-10-15 21:43:27,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:27,317 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 109 transitions. [2022-10-15 21:43:27,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.130434782608695) internal successors, (95), 24 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:27,317 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 109 transitions. [2022-10-15 21:43:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 21:43:27,320 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:27,321 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-10-15 21:43:27,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:27,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:27,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:27,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1741320306, now seen corresponding path program 3 times [2022-10-15 21:43:27,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:27,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150624271] [2022-10-15 21:43:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:27,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:28,374 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:28,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:28,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150624271] [2022-10-15 21:43:28,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150624271] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:28,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229764653] [2022-10-15 21:43:28,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:43:28,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:28,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:28,377 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) [2022-10-15 21:43:28,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:43:28,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 21:43:28,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:43:28,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 21:43:28,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:28,532 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-10-15 21:43:28,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:43:28,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229764653] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:43:28,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:43:28,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 27 [2022-10-15 21:43:28,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839741450] [2022-10-15 21:43:28,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:43:28,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:43:28,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:28,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:43:28,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2022-10-15 21:43:28,536 INFO L87 Difference]: Start difference. First operand 99 states and 109 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:28,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:28,596 INFO L93 Difference]: Finished difference Result 252 states and 281 transitions. [2022-10-15 21:43:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:43:28,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-15 21:43:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:28,612 INFO L225 Difference]: With dead ends: 252 [2022-10-15 21:43:28,612 INFO L226 Difference]: Without dead ends: 169 [2022-10-15 21:43:28,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2022-10-15 21:43:28,615 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:28,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 31 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:43:28,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-15 21:43:28,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-10-15 21:43:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.0654761904761905) internal successors, (179), 168 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:28,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 179 transitions. [2022-10-15 21:43:28,641 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 179 transitions. Word has length 98 [2022-10-15 21:43:28,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:28,643 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 179 transitions. [2022-10-15 21:43:28,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:28,643 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 179 transitions. [2022-10-15 21:43:28,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-10-15 21:43:28,657 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:28,657 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 11, 10, 10, 10, 1, 1, 1, 1] [2022-10-15 21:43:28,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:28,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:28,873 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:28,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:28,874 INFO L85 PathProgramCache]: Analyzing trace with hash 538414870, now seen corresponding path program 1 times [2022-10-15 21:43:28,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:28,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420515946] [2022-10-15 21:43:28,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:28,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1510 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-15 21:43:29,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:29,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420515946] [2022-10-15 21:43:29,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420515946] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:29,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166627627] [2022-10-15 21:43:29,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:29,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:29,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:29,970 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) [2022-10-15 21:43:29,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 21:43:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:30,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-15 21:43:30,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:30,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1510 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-15 21:43:30,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:43:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1510 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-15 21:43:30,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166627627] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:43:30,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:43:30,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2022-10-15 21:43:30,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641714648] [2022-10-15 21:43:30,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:43:30,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-15 21:43:30,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:31,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-15 21:43:31,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-10-15 21:43:31,001 INFO L87 Difference]: Start difference. First operand 169 states and 179 transitions. Second operand has 48 states, 47 states have (on average 4.74468085106383) internal successors, (223), 48 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:31,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:31,526 INFO L93 Difference]: Finished difference Result 363 states and 396 transitions. [2022-10-15 21:43:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-15 21:43:31,527 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.74468085106383) internal successors, (223), 48 states have internal predecessors, (223), 0 states have call successors, (0), 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 168 [2022-10-15 21:43:31,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:31,535 INFO L225 Difference]: With dead ends: 363 [2022-10-15 21:43:31,535 INFO L226 Difference]: Without dead ends: 362 [2022-10-15 21:43:31,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2022-10-15 21:43:31,538 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 203 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:31,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 206 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:43:31,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-10-15 21:43:31,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 361. [2022-10-15 21:43:31,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.0638888888888889) internal successors, (383), 360 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:31,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 383 transitions. [2022-10-15 21:43:31,581 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 383 transitions. Word has length 168 [2022-10-15 21:43:31,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:31,583 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 383 transitions. [2022-10-15 21:43:31,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.74468085106383) internal successors, (223), 48 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:31,584 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 383 transitions. [2022-10-15 21:43:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-10-15 21:43:31,590 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:31,590 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 23, 22, 22, 22, 1, 1, 1, 1] [2022-10-15 21:43:31,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:31,805 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,SelfDestructingSolverStorable11 [2022-10-15 21:43:31,806 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:31,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:31,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2063727674, now seen corresponding path program 2 times [2022-10-15 21:43:31,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:31,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036345501] [2022-10-15 21:43:31,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:31,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 7282 backedges. 0 proven. 7128 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-10-15 21:43:34,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:34,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036345501] [2022-10-15 21:43:34,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036345501] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:34,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822843232] [2022-10-15 21:43:34,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:43:34,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:34,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:34,955 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) [2022-10-15 21:43:34,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 21:43:35,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:43:35,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:43:35,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-15 21:43:35,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 7282 backedges. 0 proven. 7128 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-10-15 21:43:35,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:43:37,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7282 backedges. 0 proven. 7128 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-10-15 21:43:37,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822843232] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:43:37,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:43:37,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2022-10-15 21:43:37,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157836275] [2022-10-15 21:43:37,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:43:37,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-15 21:43:37,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:37,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-15 21:43:37,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2022-10-15 21:43:37,930 INFO L87 Difference]: Start difference. First operand 361 states and 383 transitions. Second operand has 96 states, 95 states have (on average 4.873684210526315) internal successors, (463), 96 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:39,831 INFO L93 Difference]: Finished difference Result 747 states and 816 transitions. [2022-10-15 21:43:39,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-10-15 21:43:39,832 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.873684210526315) internal successors, (463), 96 states have internal predecessors, (463), 0 states have call successors, (0), 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 360 [2022-10-15 21:43:39,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:39,842 INFO L225 Difference]: With dead ends: 747 [2022-10-15 21:43:39,843 INFO L226 Difference]: Without dead ends: 746 [2022-10-15 21:43:39,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4408 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5642, Invalid=14380, Unknown=0, NotChecked=0, Total=20022 [2022-10-15 21:43:39,855 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 436 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:39,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 389 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:43:39,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-10-15 21:43:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 745. [2022-10-15 21:43:39,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 744 states have (on average 1.0631720430107527) internal successors, (791), 744 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:39,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 791 transitions. [2022-10-15 21:43:39,906 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 791 transitions. Word has length 360 [2022-10-15 21:43:39,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:39,907 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 791 transitions. [2022-10-15 21:43:39,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.873684210526315) internal successors, (463), 96 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:39,908 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 791 transitions. [2022-10-15 21:43:39,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2022-10-15 21:43:39,928 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:39,929 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 93, 92, 92, 92, 47, 46, 46, 46, 1, 1, 1, 1] [2022-10-15 21:43:39,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:40,143 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,SelfDestructingSolverStorable12 [2022-10-15 21:43:40,144 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:43:40,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:40,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1662948058, now seen corresponding path program 3 times [2022-10-15 21:43:40,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:40,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878360114] [2022-10-15 21:43:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:40,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 31786 backedges. 0 proven. 31464 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2022-10-15 21:43:51,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:51,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878360114] [2022-10-15 21:43:51,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878360114] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:51,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488889638] [2022-10-15 21:43:51,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:43:51,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:51,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:51,209 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) [2022-10-15 21:43:51,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 21:43:52,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 84 check-sat command(s) [2022-10-15 21:43:52,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:43:52,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 95 conjunts are in the unsatisfiable core [2022-10-15 21:43:52,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:53,389 INFO L134 CoverageAnalysis]: Checked inductivity of 31786 backedges. 0 proven. 31464 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2022-10-15 21:43:53,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:44:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 31786 backedges. 0 proven. 31464 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2022-10-15 21:44:02,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488889638] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:44:02,003 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:44:02,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 191 [2022-10-15 21:44:02,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709930006] [2022-10-15 21:44:02,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:44:02,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-10-15 21:44:02,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:44:02,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-10-15 21:44:02,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9311, Invalid=27361, Unknown=0, NotChecked=0, Total=36672 [2022-10-15 21:44:02,022 INFO L87 Difference]: Start difference. First operand 745 states and 791 transitions. Second operand has 192 states, 191 states have (on average 4.93717277486911) internal successors, (943), 192 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:44:09,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:44:09,374 INFO L93 Difference]: Finished difference Result 1515 states and 1656 transitions. [2022-10-15 21:44:09,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-10-15 21:44:09,375 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.93717277486911) internal successors, (943), 192 states have internal predecessors, (943), 0 states have call successors, (0), 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 744 [2022-10-15 21:44:09,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:44:09,384 INFO L225 Difference]: With dead ends: 1515 [2022-10-15 21:44:09,384 INFO L226 Difference]: Without dead ends: 1514 [2022-10-15 21:44:09,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1675 GetRequests, 1391 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18040 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=22802, Invalid=58708, Unknown=0, NotChecked=0, Total=81510 [2022-10-15 21:44:09,394 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1203 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:44:09,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 721 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:44:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-10-15 21:44:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1513. [2022-10-15 21:44:09,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 1.062830687830688) internal successors, (1607), 1512 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:44:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1607 transitions. [2022-10-15 21:44:09,503 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1607 transitions. Word has length 744 [2022-10-15 21:44:09,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:44:09,505 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 1607 transitions. [2022-10-15 21:44:09,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.93717277486911) internal successors, (943), 192 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:44:09,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1607 transitions. [2022-10-15 21:44:09,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1513 [2022-10-15 21:44:09,561 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:44:09,562 INFO L195 NwaCegarLoop]: trace histogram [189, 189, 189, 188, 188, 188, 95, 94, 94, 94, 1, 1, 1, 1] [2022-10-15 21:44:09,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 21:44:09,775 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,SelfDestructingSolverStorable13 [2022-10-15 21:44:09,776 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:44:09,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:44:09,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1426210790, now seen corresponding path program 4 times [2022-10-15 21:44:09,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:44:09,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109633764] [2022-10-15 21:44:09,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:44:09,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:44:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat