/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 22:02:29,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 22:02:29,655 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 22:02:29,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 22:02:29,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 22:02:29,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 22:02:29,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 22:02:29,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 22:02:29,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 22:02:29,689 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 22:02:29,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 22:02:29,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 22:02:29,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 22:02:29,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 22:02:29,691 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 22:02:29,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 22:02:29,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 22:02:29,692 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 22:02:29,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 22:02:29,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 22:02:29,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 22:02:29,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 22:02:29,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 22:02:29,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 22:02:29,694 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 22:02:29,694 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 22:02:29,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 22:02:29,694 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 22:02:29,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 22:02:29,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 22:02:29,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 22:02:29,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 22:02:29,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:02:29,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 22:02:29,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 22:02:29,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 22:02:29,696 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 22:02:29,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 22:02:29,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 22:02:29,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 22:02:29,697 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 22:02:29,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 22:02:29,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 22:02:29,697 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 22:02:29,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 22:02:29,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 22:02:29,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 22:02:29,901 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 22:02:29,902 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 22:02:29,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i [2023-12-20 22:02:30,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 22:02:31,110 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 22:02:31,110 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i [2023-12-20 22:02:31,116 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a506b1cd1/e92eb5519f3e47b9ac82e0b8179efc79/FLAG685946961 [2023-12-20 22:02:31,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a506b1cd1/e92eb5519f3e47b9ac82e0b8179efc79 [2023-12-20 22:02:31,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 22:02:31,128 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 22:02:31,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 22:02:31,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 22:02:31,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 22:02:31,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425238f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31, skipping insertion in model container [2023-12-20 22:02:31,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,148 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 22:02:31,244 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i[917,930] [2023-12-20 22:02:31,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:02:31,287 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 22:02:31,295 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i[917,930] [2023-12-20 22:02:31,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:02:31,324 INFO L206 MainTranslator]: Completed translation [2023-12-20 22:02:31,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31 WrapperNode [2023-12-20 22:02:31,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 22:02:31,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 22:02:31,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 22:02:31,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 22:02:31,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,361 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-12-20 22:02:31,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 22:02:31,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 22:02:31,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 22:02:31,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 22:02:31,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,380 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 22:02:31,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 22:02:31,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 22:02:31,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 22:02:31,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 22:02:31,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (1/1) ... [2023-12-20 22:02:31,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:02:31,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:02:31,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 22:02:31,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 22:02:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 22:02:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 22:02:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 22:02:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 22:02:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 22:02:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 22:02:31,494 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 22:02:31,495 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 22:02:31,667 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 22:02:31,707 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 22:02:31,707 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 22:02:31,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:02:31 BoogieIcfgContainer [2023-12-20 22:02:31,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 22:02:31,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 22:02:31,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 22:02:31,711 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 22:02:31,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 10:02:31" (1/3) ... [2023-12-20 22:02:31,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb470f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:02:31, skipping insertion in model container [2023-12-20 22:02:31,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:02:31" (2/3) ... [2023-12-20 22:02:31,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb470f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:02:31, skipping insertion in model container [2023-12-20 22:02:31,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:02:31" (3/3) ... [2023-12-20 22:02:31,715 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-76.i [2023-12-20 22:02:31,727 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 22:02:31,727 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 22:02:31,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 22:02:31,764 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1918f148, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 22:02:31,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 22:02:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-20 22:02:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 22:02:31,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:02:31,776 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:02:31,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:02:31,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:02:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash 726093493, now seen corresponding path program 1 times [2023-12-20 22:02:31,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:02:31,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952661746] [2023-12-20 22:02:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:02:31,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:02:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:31,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:02:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:02:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:31,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:02:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:02:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:02:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:02:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:02:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 22:02:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:02:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 22:02:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:02:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 22:02:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:02:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 22:02:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:02:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-20 22:02:32,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:02:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952661746] [2023-12-20 22:02:32,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952661746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:02:32,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:02:32,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 22:02:32,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324889461] [2023-12-20 22:02:32,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:02:32,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 22:02:32,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:02:32,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 22:02:32,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:02:32,076 INFO L87 Difference]: Start difference. First operand has 45 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:32,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:02:32,126 INFO L93 Difference]: Finished difference Result 87 states and 153 transitions. [2023-12-20 22:02:32,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 22:02:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 93 [2023-12-20 22:02:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:02:32,136 INFO L225 Difference]: With dead ends: 87 [2023-12-20 22:02:32,136 INFO L226 Difference]: Without dead ends: 43 [2023-12-20 22:02:32,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:02:32,143 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 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 [2023-12-20 22:02:32,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:02:32,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-20 22:02:32,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-20 22:02:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-20 22:02:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 64 transitions. [2023-12-20 22:02:32,181 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 64 transitions. Word has length 93 [2023-12-20 22:02:32,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:02:32,183 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 64 transitions. [2023-12-20 22:02:32,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2023-12-20 22:02:32,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 22:02:32,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:02:32,187 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:02:32,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 22:02:32,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:02:32,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:02:32,190 INFO L85 PathProgramCache]: Analyzing trace with hash 499233082, now seen corresponding path program 1 times [2023-12-20 22:02:32,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:02:32,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141963991] [2023-12-20 22:02:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:02:32,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:02:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:02:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:02:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:02:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:02:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:02:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:02:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:02:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 22:02:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:02:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 22:02:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:02:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 22:02:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:02:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 22:02:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:02:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,408 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-20 22:02:32,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:02:32,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141963991] [2023-12-20 22:02:32,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141963991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:02:32,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:02:32,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 22:02:32,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544351943] [2023-12-20 22:02:32,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:02:32,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 22:02:32,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:02:32,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 22:02:32,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:02:32,414 INFO L87 Difference]: Start difference. First operand 43 states and 64 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:32,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:02:32,439 INFO L93 Difference]: Finished difference Result 85 states and 127 transitions. [2023-12-20 22:02:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 22:02:32,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2023-12-20 22:02:32,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:02:32,443 INFO L225 Difference]: With dead ends: 85 [2023-12-20 22:02:32,443 INFO L226 Difference]: Without dead ends: 43 [2023-12-20 22:02:32,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:02:32,445 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 15 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:02:32,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:02:32,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-20 22:02:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-20 22:02:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-20 22:02:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 63 transitions. [2023-12-20 22:02:32,454 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 63 transitions. Word has length 94 [2023-12-20 22:02:32,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:02:32,454 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 63 transitions. [2023-12-20 22:02:32,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 63 transitions. [2023-12-20 22:02:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 22:02:32,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:02:32,456 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:02:32,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 22:02:32,456 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:02:32,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:02:32,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1179291452, now seen corresponding path program 1 times [2023-12-20 22:02:32,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:02:32,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428504778] [2023-12-20 22:02:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:02:32,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:02:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:02:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:02:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:02:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:02:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:02:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:02:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:02:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 22:02:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:02:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 22:02:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:02:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 22:02:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:02:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 22:02:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:02:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,585 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-20 22:02:32,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:02:32,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428504778] [2023-12-20 22:02:32,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428504778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:02:32,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:02:32,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 22:02:32,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428680791] [2023-12-20 22:02:32,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:02:32,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 22:02:32,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:02:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 22:02:32,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:02:32,590 INFO L87 Difference]: Start difference. First operand 43 states and 63 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:02:32,609 INFO L93 Difference]: Finished difference Result 85 states and 125 transitions. [2023-12-20 22:02:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 22:02:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2023-12-20 22:02:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:02:32,611 INFO L225 Difference]: With dead ends: 85 [2023-12-20 22:02:32,611 INFO L226 Difference]: Without dead ends: 43 [2023-12-20 22:02:32,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:02:32,612 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 7 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:02:32,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 106 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:02:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-20 22:02:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-20 22:02:32,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-20 22:02:32,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 62 transitions. [2023-12-20 22:02:32,616 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 62 transitions. Word has length 94 [2023-12-20 22:02:32,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:02:32,617 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 62 transitions. [2023-12-20 22:02:32,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:32,617 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2023-12-20 22:02:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 22:02:32,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:02:32,618 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:02:32,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 22:02:32,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:02:32,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:02:32,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1951682934, now seen corresponding path program 1 times [2023-12-20 22:02:32,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:02:32,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235440900] [2023-12-20 22:02:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:02:32,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:02:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:02:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:02:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:02:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:02:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:02:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:02:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:02:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 22:02:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:02:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 22:02:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:02:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 22:02:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:02:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 22:02:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:02:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-20 22:02:32,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:02:32,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235440900] [2023-12-20 22:02:32,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235440900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:02:32,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:02:32,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 22:02:32,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879201348] [2023-12-20 22:02:32,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:02:32,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 22:02:32,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:02:32,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 22:02:32,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:02:32,730 INFO L87 Difference]: Start difference. First operand 43 states and 62 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:32,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:02:32,778 INFO L93 Difference]: Finished difference Result 123 states and 177 transitions. [2023-12-20 22:02:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 22:02:32,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-12-20 22:02:32,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:02:32,781 INFO L225 Difference]: With dead ends: 123 [2023-12-20 22:02:32,781 INFO L226 Difference]: Without dead ends: 81 [2023-12-20 22:02:32,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:02:32,782 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 52 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:02:32,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 114 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:02:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-20 22:02:32,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 47. [2023-12-20 22:02:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-20 22:02:32,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2023-12-20 22:02:32,789 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 95 [2023-12-20 22:02:32,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:02:32,789 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2023-12-20 22:02:32,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2023-12-20 22:02:32,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 22:02:32,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:02:32,790 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:02:32,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 22:02:32,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:02:32,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:02:32,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1953529976, now seen corresponding path program 1 times [2023-12-20 22:02:32,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:02:32,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595275599] [2023-12-20 22:02:32,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:02:32,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:02:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:02:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:02:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:02:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:02:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:02:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:02:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:02:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 22:02:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:02:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 22:02:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:02:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 22:02:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:02:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 22:02:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:02:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-20 22:02:34,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:02:34,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595275599] [2023-12-20 22:02:34,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595275599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:02:34,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:02:34,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 22:02:34,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318251045] [2023-12-20 22:02:34,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:02:34,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 22:02:34,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:02:34,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 22:02:34,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 22:02:34,259 INFO L87 Difference]: Start difference. First operand 47 states and 66 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:34,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:02:34,520 INFO L93 Difference]: Finished difference Result 135 states and 179 transitions. [2023-12-20 22:02:34,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 22:02:34,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-12-20 22:02:34,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:02:34,524 INFO L225 Difference]: With dead ends: 135 [2023-12-20 22:02:34,524 INFO L226 Difference]: Without dead ends: 89 [2023-12-20 22:02:34,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-20 22:02:34,527 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 66 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 22:02:34,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 245 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 22:02:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-20 22:02:34,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 66. [2023-12-20 22:02:34,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 44 states have internal predecessors, (48), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-20 22:02:34,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2023-12-20 22:02:34,547 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 95 [2023-12-20 22:02:34,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:02:34,548 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2023-12-20 22:02:34,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-20 22:02:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2023-12-20 22:02:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 22:02:34,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:02:34,553 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:02:34,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 22:02:34,554 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:02:34,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:02:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash 363211042, now seen corresponding path program 1 times [2023-12-20 22:02:34,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:02:34,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426892251] [2023-12-20 22:02:34,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:02:34,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:02:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:02:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:02:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:02:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:02:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:02:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:02:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:02:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 22:02:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:02:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 22:02:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:02:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 22:02:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:02:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 22:02:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:02:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,743 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-20 22:02:34,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:02:34,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426892251] [2023-12-20 22:02:34,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426892251] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 22:02:34,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927354400] [2023-12-20 22:02:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:02:34,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:02:34,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:02:34,746 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) [2023-12-20 22:02:34,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 22:02:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:02:34,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 22:02:34,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:02:34,917 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 204 proven. 27 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-12-20 22:02:34,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 22:02:35,026 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-20 22:02:35,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927354400] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 22:02:35,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 22:02:35,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2023-12-20 22:02:35,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717232940] [2023-12-20 22:02:35,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 22:02:35,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 22:02:35,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:02:35,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 22:02:35,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 22:02:35,028 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-20 22:02:35,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:02:35,246 INFO L93 Difference]: Finished difference Result 153 states and 196 transitions. [2023-12-20 22:02:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 22:02:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 96 [2023-12-20 22:02:35,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:02:35,247 INFO L225 Difference]: With dead ends: 153 [2023-12-20 22:02:35,247 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 22:02:35,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 217 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-20 22:02:35,248 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 69 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 22:02:35,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 127 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 22:02:35,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 22:02:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 22:02:35,249 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) [2023-12-20 22:02:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 22:02:35,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2023-12-20 22:02:35,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:02:35,249 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 22:02:35,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-20 22:02:35,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 22:02:35,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 22:02:35,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 22:02:35,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 22:02:35,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-20 22:02:35,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 22:02:35,529 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,530 INFO L895 garLoopResultBuilder]: At program point L93-1(line 93) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L94(lines 71 95) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 70) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,530 INFO L895 garLoopResultBuilder]: At program point L87-1(line 87) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,530 INFO L902 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: true [2023-12-20 22:02:35,530 INFO L902 garLoopResultBuilder]: At program point L79-1(line 79) the Hoare annotation is: true [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2023-12-20 22:02:35,530 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 53) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 37 70) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 60) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point L56-1(lines 37 70) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,531 INFO L895 garLoopResultBuilder]: At program point L73-1(line 73) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,531 INFO L895 garLoopResultBuilder]: At program point L106-2(lines 106 112) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point L106-3(lines 106 112) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,531 INFO L895 garLoopResultBuilder]: At program point L90-1(line 90) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 59) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-20 22:02:35,531 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,531 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-12-20 22:02:35,532 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-12-20 22:02:35,532 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 22:02:35,532 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2023-12-20 22:02:35,532 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 52) no Hoare annotation was computed. [2023-12-20 22:02:35,532 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 44 54) no Hoare annotation was computed. [2023-12-20 22:02:35,532 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,532 INFO L895 garLoopResultBuilder]: At program point L84-1(line 84) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,532 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,532 INFO L895 garLoopResultBuilder]: At program point L76-1(line 76) the Hoare annotation is: (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) [2023-12-20 22:02:35,532 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-20 22:02:35,532 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-20 22:02:35,532 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-20 22:02:35,532 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-20 22:02:35,534 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-20 22:02:35,535 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 22:02:35,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 10:02:35 BoogieIcfgContainer [2023-12-20 22:02:35,542 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 22:02:35,542 INFO L158 Benchmark]: Toolchain (without parser) took 4414.61ms. Allocated memory was 280.0MB in the beginning and 343.9MB in the end (delta: 64.0MB). Free memory was 234.9MB in the beginning and 191.4MB in the end (delta: 43.5MB). Peak memory consumption was 108.1MB. Max. memory is 8.0GB. [2023-12-20 22:02:35,542 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 213.9MB. Free memory was 163.5MB in the beginning and 163.4MB in the end (delta: 136.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 22:02:35,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.44ms. Allocated memory is still 280.0MB. Free memory was 234.5MB in the beginning and 222.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-20 22:02:35,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.82ms. Allocated memory is still 280.0MB. Free memory was 222.0MB in the beginning and 219.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 22:02:35,543 INFO L158 Benchmark]: Boogie Preprocessor took 28.24ms. Allocated memory is still 280.0MB. Free memory was 219.8MB in the beginning and 217.1MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-20 22:02:35,543 INFO L158 Benchmark]: RCFGBuilder took 309.75ms. Allocated memory is still 280.0MB. Free memory was 217.1MB in the beginning and 200.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-20 22:02:35,543 INFO L158 Benchmark]: TraceAbstraction took 3832.80ms. Allocated memory was 280.0MB in the beginning and 343.9MB in the end (delta: 64.0MB). Free memory was 199.6MB in the beginning and 191.4MB in the end (delta: 8.2MB). Peak memory consumption was 72.5MB. Max. memory is 8.0GB. [2023-12-20 22:02:35,544 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 213.9MB. Free memory was 163.5MB in the beginning and 163.4MB in the end (delta: 136.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.44ms. Allocated memory is still 280.0MB. Free memory was 234.5MB in the beginning and 222.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.82ms. Allocated memory is still 280.0MB. Free memory was 222.0MB in the beginning and 219.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.24ms. Allocated memory is still 280.0MB. Free memory was 219.8MB in the beginning and 217.1MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 309.75ms. Allocated memory is still 280.0MB. Free memory was 217.1MB in the beginning and 200.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 3832.80ms. Allocated memory was 280.0MB in the beginning and 343.9MB in the end (delta: 64.0MB). Free memory was 199.6MB in the beginning and 191.4MB in the end (delta: 8.2MB). Peak memory consumption was 72.5MB. 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 6, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 756 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 396 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 360 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 413 GetRequests, 380 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=5, InterpolantAutomatonStates: 37, 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, 6 MinimizatonAttempts, 57 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 136 PreInvPairs, 168 NumberOfFragments, 101 HoareAnnotationTreeSize, 136 FormulaSimplifications, 1017 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FormulaSimplificationsInter, 670 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 663 NumberOfCodeBlocks, 663 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 751 ConstructedInterpolants, 0 QuantifiedInterpolants, 1867 SizeOfPredicates, 4 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 3279/3360 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 1 specifications checked. All of them hold - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: (var_1_5 == ((var_1_5 / 256) * 256)) RESULT: Ultimate proved your program to be correct! [2023-12-20 22:02:35,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...