/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-memory-linkedlists/cll_by_lseg_traverse-alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:31:57,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:31:57,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:31:57,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 22:31:57,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:31:57,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:31:57,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:31:57,682 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 22:31:57,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:31:57,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:31:57,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:31:57,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:31:57,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:31:57,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:31:57,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:31:57,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:31:57,726 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:31:57,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:31:57,728 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:31:57,728 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:31:57,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:31:57,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:31:57,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:31:57,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:31:57,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:31:57,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:31:57,729 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:31:57,730 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:31:57,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:31:57,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:31:57,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:31:57,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:31:57,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:31:57,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:31:57,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:31:57,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:31:57,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:31:57,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:31:57,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:31:57,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:31:57,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:31:57,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:31:58,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:31:58,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:31:58,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:31:58,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:31:58,184 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:31:58,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg_traverse-alloca.i [2022-10-15 22:31:58,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d611405a/cfe7fcd05cb84d0fbb58056921539da7/FLAGbdd935402 [2022-10-15 22:31:58,963 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:31:58,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg_traverse-alloca.i [2022-10-15 22:31:58,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d611405a/cfe7fcd05cb84d0fbb58056921539da7/FLAGbdd935402 [2022-10-15 22:31:59,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d611405a/cfe7fcd05cb84d0fbb58056921539da7 [2022-10-15 22:31:59,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:31:59,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:31:59,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:31:59,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:31:59,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:31:59,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55657f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59, skipping insertion in model container [2022-10-15 22:31:59,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:31:59,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:31:59,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:31:59,585 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:31:59,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:31:59,696 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:31:59,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59 WrapperNode [2022-10-15 22:31:59,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:31:59,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:31:59,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:31:59,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:31:59,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,744 INFO L138 Inliner]: procedures = 115, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 38 [2022-10-15 22:31:59,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:31:59,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:31:59,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:31:59,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:31:59,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,774 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:31:59,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:31:59,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:31:59,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:31:59,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (1/1) ... [2022-10-15 22:31:59,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:31:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:31:59,818 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 22:31:59,821 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 22:31:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 22:31:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 22:31:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 22:31:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 22:31:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure new_lseg [2022-10-15 22:31:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure new_lseg [2022-10-15 22:31:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:31:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:31:59,978 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:31:59,981 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:32:00,262 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:32:00,273 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:32:00,274 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 22:32:00,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:32:00 BoogieIcfgContainer [2022-10-15 22:32:00,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:32:00,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:32:00,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:32:00,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:32:00,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:31:59" (1/3) ... [2022-10-15 22:32:00,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29eeabd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:32:00, skipping insertion in model container [2022-10-15 22:32:00,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:59" (2/3) ... [2022-10-15 22:32:00,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29eeabd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:32:00, skipping insertion in model container [2022-10-15 22:32:00,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:32:00" (3/3) ... [2022-10-15 22:32:00,319 INFO L112 eAbstractionObserver]: Analyzing ICFG cll_by_lseg_traverse-alloca.i [2022-10-15 22:32:00,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:32:00,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-15 22:32:00,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:32:00,407 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;@b8ba8f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:32:00,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-15 22:32:00,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 21 states have internal predecessors, (25), 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 22:32:00,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 22:32:00,420 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:00,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 22:32:00,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:00,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:00,428 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2022-10-15 22:32:00,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:00,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984928089] [2022-10-15 22:32:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:00,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:00,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:00,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984928089] [2022-10-15 22:32:00,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984928089] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:32:00,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:32:00,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:32:00,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330526348] [2022-10-15 22:32:00,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:32:00,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:32:00,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:32:00,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:32:00,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:32:00,793 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 21 states have internal predecessors, (25), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 22:32:00,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:00,854 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-10-15 22:32:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:32:00,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 22:32:00,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:00,870 INFO L225 Difference]: With dead ends: 32 [2022-10-15 22:32:00,870 INFO L226 Difference]: Without dead ends: 14 [2022-10-15 22:32:00,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:32:00,879 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:00,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 51 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:32:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-10-15 22:32:00,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-10-15 22:32:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 12 states have internal predecessors, (12), 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 22:32:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-10-15 22:32:00,923 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2022-10-15 22:32:00,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:00,924 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-10-15 22:32:00,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 22:32:00,924 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-10-15 22:32:00,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 22:32:00,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:00,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 22:32:00,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:32:00,926 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:00,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:00,927 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2022-10-15 22:32:00,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:00,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742321703] [2022-10-15 22:32:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:00,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:01,051 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 22:32:01,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:01,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742321703] [2022-10-15 22:32:01,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742321703] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:32:01,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:32:01,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:32:01,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664594258] [2022-10-15 22:32:01,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:32:01,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:32:01,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:32:01,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:32:01,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:32:01,064 INFO L87 Difference]: Start difference. First operand 14 states and 14 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 22:32:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:01,076 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-10-15 22:32:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:32:01,077 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 22:32:01,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:01,078 INFO L225 Difference]: With dead ends: 14 [2022-10-15 22:32:01,078 INFO L226 Difference]: Without dead ends: 13 [2022-10-15 22:32:01,079 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 22:32:01,084 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:01,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:32:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-10-15 22:32:01,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-10-15 22:32:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 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 22:32:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-10-15 22:32:01,099 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 5 [2022-10-15 22:32:01,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:01,099 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-10-15 22:32:01,099 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 22:32:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-10-15 22:32:01,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 22:32:01,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:01,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:32:01,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:32:01,102 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:01,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1180862139, now seen corresponding path program 1 times [2022-10-15 22:32:01,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:01,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931501746] [2022-10-15 22:32:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:01,288 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 22:32:01,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:01,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931501746] [2022-10-15 22:32:01,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931501746] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:32:01,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:32:01,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:32:01,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446620656] [2022-10-15 22:32:01,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:32:01,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:32:01,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:32:01,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:32:01,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:32:01,293 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 22:32:01,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:01,347 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-10-15 22:32:01,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:32:01,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 22:32:01,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:01,348 INFO L225 Difference]: With dead ends: 13 [2022-10-15 22:32:01,349 INFO L226 Difference]: Without dead ends: 12 [2022-10-15 22:32:01,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:32:01,351 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:01,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 11 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:32:01,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-10-15 22:32:01,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-10-15 22:32:01,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 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 22:32:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-10-15 22:32:01,357 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2022-10-15 22:32:01,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:01,358 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-10-15 22:32:01,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 22:32:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-10-15 22:32:01,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 22:32:01,359 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:01,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:32:01,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:32:01,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:01,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:01,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2047979285, now seen corresponding path program 1 times [2022-10-15 22:32:01,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:01,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950495172] [2022-10-15 22:32:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:01,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:01,504 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 22:32:01,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:01,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950495172] [2022-10-15 22:32:01,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950495172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:32:01,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:32:01,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:32:01,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114075501] [2022-10-15 22:32:01,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:32:01,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:32:01,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:32:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:32:01,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:32:01,508 INFO L87 Difference]: Start difference. First operand 12 states and 12 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 22:32:01,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:01,547 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-10-15 22:32:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:32:01,548 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 22:32:01,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:01,549 INFO L225 Difference]: With dead ends: 18 [2022-10-15 22:32:01,549 INFO L226 Difference]: Without dead ends: 17 [2022-10-15 22:32:01,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:32:01,551 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:01,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 19 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:32:01,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-10-15 22:32:01,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-10-15 22:32:01,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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 22:32:01,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-10-15 22:32:01,559 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2022-10-15 22:32:01,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:01,559 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-10-15 22:32:01,559 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 22:32:01,560 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-10-15 22:32:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 22:32:01,560 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:01,561 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:32:01,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:32:01,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:01,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:01,562 INFO L85 PathProgramCache]: Analyzing trace with hash 399684487, now seen corresponding path program 1 times [2022-10-15 22:32:01,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:01,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938522333] [2022-10-15 22:32:01,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:01,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:01,742 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 22:32:01,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:01,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938522333] [2022-10-15 22:32:01,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938522333] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:32:01,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79451187] [2022-10-15 22:32:01,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:01,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:01,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:32:01,747 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 22:32:01,772 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 22:32:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:01,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 22:32:01,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:32:02,020 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 22:32:02,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:32:02,130 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 22:32:02,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79451187] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:32:02,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:32:02,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-15 22:32:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643282866] [2022-10-15 22:32:02,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:32:02,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 22:32:02,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:32:02,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 22:32:02,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-15 22:32:02,137 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:02,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:02,285 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-10-15 22:32:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 22:32:02,285 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 22:32:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:02,288 INFO L225 Difference]: With dead ends: 33 [2022-10-15 22:32:02,288 INFO L226 Difference]: Without dead ends: 32 [2022-10-15 22:32:02,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-10-15 22:32:02,295 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:02,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 32 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:32:02,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-15 22:32:02,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-10-15 22:32:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 5 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 22:32:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2022-10-15 22:32:02,321 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 15 [2022-10-15 22:32:02,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:02,322 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2022-10-15 22:32:02,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:02,326 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-10-15 22:32:02,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 22:32:02,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:02,327 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:32:02,366 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 22:32:02,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:02,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:02,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1538061291, now seen corresponding path program 2 times [2022-10-15 22:32:02,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:02,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437527260] [2022-10-15 22:32:02,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:02,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:02,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:02,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437527260] [2022-10-15 22:32:02,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437527260] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:32:02,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61114117] [2022-10-15 22:32:02,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:32:02,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:02,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:32:02,965 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 22:32:02,987 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 22:32:03,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:32:03,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:32:03,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-15 22:32:03,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:32:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:03,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:32:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:03,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61114117] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:32:03,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:32:03,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-10-15 22:32:03,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423137181] [2022-10-15 22:32:03,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:32:03,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-15 22:32:03,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:32:03,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-15 22:32:03,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-10-15 22:32:03,390 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 14 states have internal predecessors, (48), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:03,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:03,654 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2022-10-15 22:32:03,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 22:32:03,654 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 14 states have internal predecessors, (48), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-15 22:32:03,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:03,656 INFO L225 Difference]: With dead ends: 63 [2022-10-15 22:32:03,656 INFO L226 Difference]: Without dead ends: 62 [2022-10-15 22:32:03,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 22:32:03,658 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 83 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:03,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 34 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:32:03,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-15 22:32:03,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2022-10-15 22:32:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 49 states have internal predecessors, (50), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2022-10-15 22:32:03,672 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 30 [2022-10-15 22:32:03,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:03,672 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2022-10-15 22:32:03,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 14 states have internal predecessors, (48), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2022-10-15 22:32:03,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 22:32:03,675 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:03,675 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:32:03,713 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 22:32:03,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 22:32:03,890 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:03,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash 610130027, now seen corresponding path program 3 times [2022-10-15 22:32:03,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:03,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471214254] [2022-10-15 22:32:03,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:03,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:04,778 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:04,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:04,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471214254] [2022-10-15 22:32:04,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471214254] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:32:04,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228229065] [2022-10-15 22:32:04,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 22:32:04,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:04,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:32:04,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 22:32:04,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 22:32:08,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-15 22:32:08,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:32:08,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-15 22:32:08,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:32:09,014 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:09,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:32:09,654 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:09,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228229065] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:32:09,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:32:09,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-10-15 22:32:09,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127782089] [2022-10-15 22:32:09,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:32:09,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-15 22:32:09,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:32:09,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-15 22:32:09,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-10-15 22:32:09,659 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 48 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 26 states have internal predecessors, (96), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:10,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:10,380 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2022-10-15 22:32:10,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-15 22:32:10,388 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 26 states have internal predecessors, (96), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-15 22:32:10,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:10,395 INFO L225 Difference]: With dead ends: 123 [2022-10-15 22:32:10,395 INFO L226 Difference]: Without dead ends: 122 [2022-10-15 22:32:10,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2022-10-15 22:32:10,399 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 273 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:10,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 29 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:32:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-15 22:32:10,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-10-15 22:32:10,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 97 states have (on average 1.0103092783505154) internal successors, (98), 97 states have internal predecessors, (98), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2022-10-15 22:32:10,452 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 60 [2022-10-15 22:32:10,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:10,454 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2022-10-15 22:32:10,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 26 states have internal predecessors, (96), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:10,455 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2022-10-15 22:32:10,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-15 22:32:10,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:10,465 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:32:10,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 22:32:10,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:10,667 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:10,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2118058347, now seen corresponding path program 4 times [2022-10-15 22:32:10,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:10,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243050520] [2022-10-15 22:32:10,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:10,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:13,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:13,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243050520] [2022-10-15 22:32:13,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243050520] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:32:13,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146873745] [2022-10-15 22:32:13,480 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 22:32:13,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:13,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:32:13,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 22:32:13,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 22:32:17,236 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 22:32:17,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:32:17,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 50 conjunts are in the unsatisfiable core [2022-10-15 22:32:17,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:32:17,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:17,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:32:19,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:19,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146873745] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:32:19,722 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:32:19,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-10-15 22:32:19,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666304660] [2022-10-15 22:32:19,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:32:19,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-15 22:32:19,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:32:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-15 22:32:19,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-10-15 22:32:19,730 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand has 96 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 50 states have internal predecessors, (192), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:21,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:21,983 INFO L93 Difference]: Finished difference Result 243 states and 266 transitions. [2022-10-15 22:32:21,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-10-15 22:32:21,983 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 50 states have internal predecessors, (192), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-10-15 22:32:21,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:21,988 INFO L225 Difference]: With dead ends: 243 [2022-10-15 22:32:21,988 INFO L226 Difference]: Without dead ends: 242 [2022-10-15 22:32:21,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2022-10-15 22:32:22,000 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 725 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:22,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 38 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 22:32:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-10-15 22:32:22,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241. [2022-10-15 22:32:22,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 193 states have (on average 1.005181347150259) internal successors, (194), 193 states have internal predecessors, (194), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 241 transitions. [2022-10-15 22:32:22,055 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 241 transitions. Word has length 120 [2022-10-15 22:32:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:22,056 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 241 transitions. [2022-10-15 22:32:22,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 50 states have internal predecessors, (192), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:32:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 241 transitions. [2022-10-15 22:32:22,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-15 22:32:22,060 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:22,060 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:32:22,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 22:32:22,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:22,261 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:22,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:22,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1373557611, now seen corresponding path program 5 times [2022-10-15 22:32:22,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:22,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550579641] [2022-10-15 22:32:22,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:22,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:30,739 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:30,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:30,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550579641] [2022-10-15 22:32:30,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550579641] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:32:30,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402795553] [2022-10-15 22:32:30,740 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-15 22:32:30,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:30,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:32:30,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 22:32:30,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process