/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/termination-crafted/RecursiveNonterminating-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:44:35,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:44:35,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:44:35,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 22:44:35,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:44:35,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:44:35,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:44:35,948 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 22:44:35,983 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:44:35,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:44:35,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:44:35,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:44:35,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:44:35,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:44:35,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:44:35,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:44:35,991 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:44:35,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:44:35,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:44:35,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:44:35,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:44:35,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:44:35,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:44:35,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:44:35,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:44:35,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:44:35,995 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:44:35,995 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:44:35,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:44:35,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:44:35,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:44:35,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:44:35,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:44:35,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:44:35,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:44:35,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:44:35,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:44:36,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:44:36,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:44:36,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:44:36,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:44:36,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:44:36,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:44:36,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:44:36,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:44:36,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:44:36,508 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:44:36,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-1.c [2022-10-15 22:44:36,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48386fc65/d3ffc5d70b8545a490bf9c11e500c4c5/FLAGee59e677c [2022-10-15 22:44:37,129 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:44:37,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/RecursiveNonterminating-1.c [2022-10-15 22:44:37,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48386fc65/d3ffc5d70b8545a490bf9c11e500c4c5/FLAGee59e677c [2022-10-15 22:44:37,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48386fc65/d3ffc5d70b8545a490bf9c11e500c4c5 [2022-10-15 22:44:37,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:44:37,517 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:44:37,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:44:37,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:44:37,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:44:37,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129eb637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37, skipping insertion in model container [2022-10-15 22:44:37,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:44:37,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:44:37,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:44:37,709 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:44:37,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:44:37,735 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:44:37,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37 WrapperNode [2022-10-15 22:44:37,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:44:37,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:44:37,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:44:37,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:44:37,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,772 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2022-10-15 22:44:37,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:44:37,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:44:37,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:44:37,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:44:37,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,790 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:44:37,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:44:37,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:44:37,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:44:37,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (1/1) ... [2022-10-15 22:44:37,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:44:37,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:37,831 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 22:44:37,834 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 22:44:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2022-10-15 22:44:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2022-10-15 22:44:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:44:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:44:37,945 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:44:37,947 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:44:38,114 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:44:38,134 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:44:38,134 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 22:44:38,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:44:38 BoogieIcfgContainer [2022-10-15 22:44:38,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:44:38,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:44:38,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:44:38,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:44:38,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:44:37" (1/3) ... [2022-10-15 22:44:38,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a25d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:44:38, skipping insertion in model container [2022-10-15 22:44:38,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:37" (2/3) ... [2022-10-15 22:44:38,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a25d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:44:38, skipping insertion in model container [2022-10-15 22:44:38,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:44:38" (3/3) ... [2022-10-15 22:44:38,158 INFO L112 eAbstractionObserver]: Analyzing ICFG RecursiveNonterminating-1.c [2022-10-15 22:44:38,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:44:38,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-15 22:44:38,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:44:38,308 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;@30baa02f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:44:38,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-15 22:44:38,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.588235294117647) internal successors, (27), 26 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 22:44:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 22:44:38,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:38,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 22:44:38,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:44:38,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:38,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1572132, now seen corresponding path program 1 times [2022-10-15 22:44:38,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:38,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812632671] [2022-10-15 22:44:38,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:38,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:38,600 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 22:44:38,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:38,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812632671] [2022-10-15 22:44:38,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812632671] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:38,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:38,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:44:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764106568] [2022-10-15 22:44:38,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:38,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:44:38,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:38,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:44:38,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:44:38,665 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.588235294117647) internal successors, (27), 26 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) 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 22:44:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:38,748 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-10-15 22:44:38,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:44:38,761 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 22:44:38,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:38,779 INFO L225 Difference]: With dead ends: 32 [2022-10-15 22:44:38,779 INFO L226 Difference]: Without dead ends: 22 [2022-10-15 22:44:38,793 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 22:44:38,805 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:38,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:44:38,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-10-15 22:44:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-10-15 22:44:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 20 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:38,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-10-15 22:44:38,891 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 4 [2022-10-15 22:44:38,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:38,892 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-10-15 22:44:38,892 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 22:44:38,893 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-10-15 22:44:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 22:44:38,893 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:38,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 22:44:38,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:44:38,895 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:44:38,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:38,896 INFO L85 PathProgramCache]: Analyzing trace with hash 48736154, now seen corresponding path program 1 times [2022-10-15 22:44:38,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:38,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379072700] [2022-10-15 22:44:38,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:38,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:38,982 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 22:44:38,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:38,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379072700] [2022-10-15 22:44:38,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379072700] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:38,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:38,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:44:38,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328905131] [2022-10-15 22:44:38,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:38,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:44:38,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:38,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:44:38,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:44:38,989 INFO L87 Difference]: Start difference. First operand 22 states and 22 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 22:44:39,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:39,012 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-10-15 22:44:39,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:44:39,013 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 22:44:39,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:39,016 INFO L225 Difference]: With dead ends: 22 [2022-10-15 22:44:39,017 INFO L226 Difference]: Without dead ends: 21 [2022-10-15 22:44:39,021 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 22:44:39,024 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 34 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 22:44:39,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 34 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:44:39,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-15 22:44:39,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-15 22:44:39,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 19 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-10-15 22:44:39,037 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 5 [2022-10-15 22:44:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:39,038 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-10-15 22:44:39,039 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 22:44:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-10-15 22:44:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 22:44:39,040 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:39,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:39,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:44:39,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:44:39,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:39,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1901498708, now seen corresponding path program 1 times [2022-10-15 22:44:39,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:39,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174503494] [2022-10-15 22:44:39,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:39,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:39,238 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 22:44:39,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:39,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174503494] [2022-10-15 22:44:39,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174503494] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:39,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:39,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:44:39,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923919359] [2022-10-15 22:44:39,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:39,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:44:39,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:39,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:44:39,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:44:39,242 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:39,372 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2022-10-15 22:44:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:44:39,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 22:44:39,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:39,374 INFO L225 Difference]: With dead ends: 36 [2022-10-15 22:44:39,374 INFO L226 Difference]: Without dead ends: 34 [2022-10-15 22:44:39,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:44:39,377 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 33 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:39,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:39,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-15 22:44:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2022-10-15 22:44:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 23 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-10-15 22:44:39,385 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2022-10-15 22:44:39,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:39,386 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-10-15 22:44:39,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,386 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-10-15 22:44:39,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 22:44:39,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:39,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:39,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:44:39,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:44:39,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:39,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1183082159, now seen corresponding path program 1 times [2022-10-15 22:44:39,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:39,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096687022] [2022-10-15 22:44:39,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:39,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:39,497 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 22:44:39,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:39,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096687022] [2022-10-15 22:44:39,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096687022] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:39,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:39,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:44:39,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974083301] [2022-10-15 22:44:39,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:39,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:44:39,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:39,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:44:39,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:44:39,500 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:39,583 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2022-10-15 22:44:39,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:44:39,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 22:44:39,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:39,585 INFO L225 Difference]: With dead ends: 34 [2022-10-15 22:44:39,586 INFO L226 Difference]: Without dead ends: 32 [2022-10-15 22:44:39,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:44:39,590 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:39,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 46 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:39,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-15 22:44:39,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2022-10-15 22:44:39,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 24 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-10-15 22:44:39,606 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 10 [2022-10-15 22:44:39,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:39,608 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-10-15 22:44:39,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,608 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-10-15 22:44:39,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 22:44:39,609 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:39,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:39,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:44:39,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:44:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:39,611 INFO L85 PathProgramCache]: Analyzing trace with hash -698929000, now seen corresponding path program 1 times [2022-10-15 22:44:39,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:39,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700336337] [2022-10-15 22:44:39,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:39,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:39,690 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 22:44:39,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:39,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700336337] [2022-10-15 22:44:39,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700336337] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:39,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:39,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:44:39,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648437137] [2022-10-15 22:44:39,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:39,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:44:39,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:39,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:44:39,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:44:39,694 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:39,704 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-10-15 22:44:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:44:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 22:44:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:39,706 INFO L225 Difference]: With dead ends: 27 [2022-10-15 22:44:39,706 INFO L226 Difference]: Without dead ends: 26 [2022-10-15 22:44:39,706 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 22:44:39,708 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:39,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:44:39,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-15 22:44:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-15 22:44:39,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.263157894736842) internal successors, (24), 23 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2022-10-15 22:44:39,715 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 13 [2022-10-15 22:44:39,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:39,715 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2022-10-15 22:44:39,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2022-10-15 22:44:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 22:44:39,716 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:39,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:39,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 22:44:39,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:44:39,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:39,718 INFO L85 PathProgramCache]: Analyzing trace with hash -191962475, now seen corresponding path program 1 times [2022-10-15 22:44:39,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:39,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259369435] [2022-10-15 22:44:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:39,751 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 22:44:39,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:39,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259369435] [2022-10-15 22:44:39,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259369435] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:39,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:39,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:44:39,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75930914] [2022-10-15 22:44:39,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:39,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:44:39,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:39,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:44:39,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:44:39,754 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:39,763 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-10-15 22:44:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:44:39,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-15 22:44:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:39,765 INFO L225 Difference]: With dead ends: 26 [2022-10-15 22:44:39,765 INFO L226 Difference]: Without dead ends: 25 [2022-10-15 22:44:39,768 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 22:44:39,769 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 23 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 22:44:39,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 23 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:44:39,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-15 22:44:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-15 22:44:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-10-15 22:44:39,783 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 14 [2022-10-15 22:44:39,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:39,784 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-10-15 22:44:39,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-10-15 22:44:39,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 22:44:39,785 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:39,785 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:39,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 22:44:39,788 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:44:39,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:39,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1990258193, now seen corresponding path program 1 times [2022-10-15 22:44:39,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:39,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946457508] [2022-10-15 22:44:39,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:39,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:39,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:39,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946457508] [2022-10-15 22:44:39,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946457508] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:39,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265571026] [2022-10-15 22:44:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:39,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:39,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:39,941 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 22:44:39,957 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 22:44:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:39,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 22:44:39,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:40,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:40,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:40,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:40,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265571026] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:40,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:40,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 12 [2022-10-15 22:44:40,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83595722] [2022-10-15 22:44:40,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:40,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 22:44:40,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:40,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 22:44:40,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-15 22:44:40,164 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:40,425 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-10-15 22:44:40,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 22:44:40,426 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (5), 5 states have call predecessors, (5), 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 22:44:40,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:40,427 INFO L225 Difference]: With dead ends: 39 [2022-10-15 22:44:40,428 INFO L226 Difference]: Without dead ends: 37 [2022-10-15 22:44:40,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-10-15 22:44:40,430 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 78 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:40,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 65 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-15 22:44:40,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23. [2022-10-15 22:44:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2022-10-15 22:44:40,438 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 18 [2022-10-15 22:44:40,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:40,439 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2022-10-15 22:44:40,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2022-10-15 22:44:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 22:44:40,440 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:40,440 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:40,481 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 22:44:40,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:40,657 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-15 22:44:40,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1568461876, now seen corresponding path program 1 times [2022-10-15 22:44:40,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:40,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855466433] [2022-10-15 22:44:40,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:40,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:40,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:40,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855466433] [2022-10-15 22:44:40,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855466433] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:40,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376359920] [2022-10-15 22:44:40,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:40,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:40,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:40,861 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 22:44:40,899 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 22:44:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:40,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 22:44:40,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:40,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:40,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:41,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376359920] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:41,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:41,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 12 [2022-10-15 22:44:41,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733826250] [2022-10-15 22:44:41,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:41,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 22:44:41,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:41,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 22:44:41,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-15 22:44:41,034 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:41,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:41,256 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-10-15 22:44:41,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 22:44:41,257 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 5 states have call predecessors, (5), 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 22:44:41,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:41,258 INFO L225 Difference]: With dead ends: 35 [2022-10-15 22:44:41,258 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 22:44:41,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-10-15 22:44:41,260 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 58 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:41,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 53 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 22:44:41,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 22:44:41,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:41,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 22:44:41,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-10-15 22:44:41,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:41,263 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 22:44:41,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:41,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 22:44:41,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 22:44:41,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-10-15 22:44:41,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-10-15 22:44:41,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-10-15 22:44:41,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-10-15 22:44:41,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-10-15 22:44:41,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-10-15 22:44:41,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-10-15 22:44:41,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-10-15 22:44:41,313 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 22:44:41,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-15 22:44:41,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 22:44:41,731 INFO L902 garLoopResultBuilder]: At program point recENTRY(lines 10 14) the Hoare annotation is: true [2022-10-15 22:44:41,731 INFO L899 garLoopResultBuilder]: For program point recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,732 INFO L899 garLoopResultBuilder]: For program point recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,732 INFO L899 garLoopResultBuilder]: For program point recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,732 INFO L899 garLoopResultBuilder]: For program point recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,732 INFO L899 garLoopResultBuilder]: For program point recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,732 INFO L899 garLoopResultBuilder]: For program point recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,733 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,733 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2022-10-15 22:44:41,733 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,733 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,733 INFO L899 garLoopResultBuilder]: For program point L11-1(lines 10 14) no Hoare annotation was computed. [2022-10-15 22:44:41,733 INFO L899 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,733 INFO L899 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,734 INFO L899 garLoopResultBuilder]: For program point recEXIT(lines 10 14) no Hoare annotation was computed. [2022-10-15 22:44:41,734 INFO L899 garLoopResultBuilder]: For program point L12-5(line 12) no Hoare annotation was computed. [2022-10-15 22:44:41,735 INFO L895 garLoopResultBuilder]: At program point L12-6(line 12) the Hoare annotation is: (let ((.cse17 (+ |rec_#in~x| 1))) (let ((.cse9 (* 2 |rec_#in~y|)) (.cse8 (+ 2 |rec_#in~x|)) (.cse15 (<= .cse17 |rec_#in~y|))) (let ((.cse4 (not .cse15)) (.cse2 (* rec_~y 2)) (.cse7 (+ rec_~x 2)) (.cse10 (<= .cse9 .cse8)) (.cse12 (<= |rec_#in~y| 24)) (.cse13 (+ rec_~x 1))) (let ((.cse3 (not (<= |rec_#in~y| .cse17))) (.cse1 (<= rec_~y .cse13)) (.cse0 (let ((.cse14 (<= 0 (+ rec_~x 42))) (.cse16 (<= rec_~x 23))) (or (and (<= .cse13 rec_~y) .cse14 .cse15 (<= .cse2 2147483647) .cse16) (and (<= .cse2 .cse7) .cse14 .cse10 .cse16 .cse12)))) (.cse5 (not (<= 0 (+ 41 |rec_#in~y|)))) (.cse6 (let ((.cse11 (not .cse12))) (and (or (not .cse10) .cse11) (or .cse11 .cse4))))) (and (or (and .cse0 .cse1 (<= 0 (+ .cse2 2147483648))) .cse3 .cse4) (or .cse3 .cse5 (and .cse0 (<= 0 (+ 41 rec_~y)) .cse1) .cse6) (or (and .cse0 (<= .cse7 .cse2)) (not (<= .cse8 .cse9)) .cse5 .cse6)))))) [2022-10-15 22:44:41,735 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-10-15 22:44:41,735 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 22:44:41,735 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 22:44:41,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-10-15 22:44:41,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 22:44:41,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 22:44:41,736 INFO L902 garLoopResultBuilder]: At program point L20(lines 16 21) the Hoare annotation is: true [2022-10-15 22:44:41,736 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-10-15 22:44:41,736 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-10-15 22:44:41,737 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-10-15 22:44:41,737 INFO L895 garLoopResultBuilder]: At program point L19-2(line 19) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483646) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648))) [2022-10-15 22:44:41,737 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2022-10-15 22:44:41,741 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:41,745 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 22:44:41,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:44:41 BoogieIcfgContainer [2022-10-15 22:44:41,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 22:44:41,756 INFO L158 Benchmark]: Toolchain (without parser) took 4242.44ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 139.8MB in the beginning and 139.5MB in the end (delta: 276.0kB). Peak memory consumption was 35.4MB. Max. memory is 8.0GB. [2022-10-15 22:44:41,756 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 166.7MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 22:44:41,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.49ms. Allocated memory is still 166.7MB. Free memory was 139.6MB in the beginning and 131.0MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-10-15 22:44:41,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.50ms. Allocated memory is still 166.7MB. Free memory was 131.0MB in the beginning and 129.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 22:44:41,757 INFO L158 Benchmark]: Boogie Preprocessor took 19.63ms. Allocated memory is still 166.7MB. Free memory was 129.7MB in the beginning and 128.7MB in the end (delta: 970.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 22:44:41,757 INFO L158 Benchmark]: RCFGBuilder took 343.90ms. Allocated memory is still 166.7MB. Free memory was 128.7MB in the beginning and 119.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 22:44:41,758 INFO L158 Benchmark]: TraceAbstraction took 3613.57ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 118.6MB in the beginning and 139.5MB in the end (delta: -20.9MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. [2022-10-15 22:44:41,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 166.7MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.49ms. Allocated memory is still 166.7MB. Free memory was 139.6MB in the beginning and 131.0MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.50ms. Allocated memory is still 166.7MB. Free memory was 131.0MB in the beginning and 129.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.63ms. Allocated memory is still 166.7MB. Free memory was 129.7MB in the beginning and 128.7MB in the end (delta: 970.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 343.90ms. Allocated memory is still 166.7MB. Free memory was 128.7MB in the beginning and 119.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3613.57ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 118.6MB in the beginning and 139.5MB in the end (delta: -20.9MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 338 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 219 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 374 IncrementalHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 119 mSDtfsCounter, 374 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 10 PreInvPairs, 11 NumberOfFragments, 288 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 112 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 472 SizeOfPredicates, 2 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 8/21 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-15 22:44:41,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...