/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 11:02:47,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 11:02:47,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 11:02:47,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 11:02:47,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 11:02:47,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 11:02:47,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 11:02:47,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 11:02:47,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 11:02:47,325 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 11:02:47,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 11:02:47,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 11:02:47,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 11:02:47,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 11:02:47,326 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 11:02:47,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 11:02:47,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 11:02:47,327 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 11:02:47,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 11:02:47,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 11:02:47,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 11:02:47,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 11:02:47,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 11:02:47,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 11:02:47,338 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 11:02:47,338 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 11:02:47,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 11:02:47,338 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 11:02:47,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 11:02:47,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 11:02:47,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 11:02:47,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 11:02:47,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:02:47,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 11:02:47,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 11:02:47,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 11:02:47,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 11:02:47,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 11:02:47,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 11:02:47,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 11:02:47,340 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 11:02:47,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 11:02:47,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 11:02:47,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 11:02:47,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 11:02:47,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 11:02:47,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 11:02:47,523 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 11:02:47,524 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 11:02:47,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i [2023-12-19 11:02:48,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 11:02:48,907 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 11:02:48,908 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i [2023-12-19 11:02:48,916 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c34e866/f77f5fe948eb4df38a06dcb9993eedea/FLAGd53ad2a51 [2023-12-19 11:02:48,931 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c34e866/f77f5fe948eb4df38a06dcb9993eedea [2023-12-19 11:02:48,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 11:02:48,935 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 11:02:48,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 11:02:48,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 11:02:48,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 11:02:48,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:02:48" (1/1) ... [2023-12-19 11:02:48,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c6ebab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:48, skipping insertion in model container [2023-12-19 11:02:48,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:02:48" (1/1) ... [2023-12-19 11:02:48,972 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 11:02:49,072 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_no-floats_file-8.i[915,928] [2023-12-19 11:02:49,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:02:49,113 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 11:02:49,122 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_no-floats_file-8.i[915,928] [2023-12-19 11:02:49,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:02:49,152 INFO L206 MainTranslator]: Completed translation [2023-12-19 11:02:49,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49 WrapperNode [2023-12-19 11:02:49,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 11:02:49,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 11:02:49,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 11:02:49,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 11:02:49,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,191 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-12-19 11:02:49,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 11:02:49,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 11:02:49,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 11:02:49,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 11:02:49,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,205 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,236 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]. [2023-12-19 11:02:49,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 11:02:49,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 11:02:49,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 11:02:49,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 11:02:49,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (1/1) ... [2023-12-19 11:02:49,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:02:49,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:49,310 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) [2023-12-19 11:02:49,328 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 [2023-12-19 11:02:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 11:02:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 11:02:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 11:02:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 11:02:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 11:02:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 11:02:49,392 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 11:02:49,394 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 11:02:49,656 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 11:02:49,707 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 11:02:49,707 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 11:02:49,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:02:49 BoogieIcfgContainer [2023-12-19 11:02:49,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 11:02:49,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 11:02:49,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 11:02:49,720 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 11:02:49,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:02:48" (1/3) ... [2023-12-19 11:02:49,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e43dfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:02:49, skipping insertion in model container [2023-12-19 11:02:49,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:49" (2/3) ... [2023-12-19 11:02:49,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e43dfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:02:49, skipping insertion in model container [2023-12-19 11:02:49,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:02:49" (3/3) ... [2023-12-19 11:02:49,722 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-8.i [2023-12-19 11:02:49,739 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 11:02:49,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 11:02:49,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 11:02:49,792 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;@5729cad7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 11:02:49,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 11:02:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 11:02:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 11:02:49,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:49,809 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1] [2023-12-19 11:02:49,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:49,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:49,814 INFO L85 PathProgramCache]: Analyzing trace with hash -952863158, now seen corresponding path program 1 times [2023-12-19 11:02:49,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:49,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256780968] [2023-12-19 11:02:49,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:49,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:02:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:02:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:02:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:02:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:02:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:02:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:02:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:02:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:02:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:02:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:02:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:02:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:02:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:02:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:02:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:02:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 11:02:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 11:02:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 11:02:50,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256780968] [2023-12-19 11:02:50,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256780968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:50,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:50,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 11:02:50,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100407573] [2023-12-19 11:02:50,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:50,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 11:02:50,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:50,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 11:02:50,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:02:50,203 INFO L87 Difference]: Start difference. First operand has 45 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 11:02:50,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:50,234 INFO L93 Difference]: Finished difference Result 87 states and 154 transitions. [2023-12-19 11:02:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 11:02:50,236 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), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 108 [2023-12-19 11:02:50,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:50,243 INFO L225 Difference]: With dead ends: 87 [2023-12-19 11:02:50,243 INFO L226 Difference]: Without dead ends: 43 [2023-12-19 11:02:50,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:02:50,251 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 [2023-12-19 11:02:50,252 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] [2023-12-19 11:02:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-19 11:02:50,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-19 11:02:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 11:02:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 64 transitions. [2023-12-19 11:02:50,299 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 64 transitions. Word has length 108 [2023-12-19 11:02:50,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:50,299 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 64 transitions. [2023-12-19 11:02:50,300 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), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 11:02:50,300 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2023-12-19 11:02:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 11:02:50,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:50,306 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1] [2023-12-19 11:02:50,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 11:02:50,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:50,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:50,309 INFO L85 PathProgramCache]: Analyzing trace with hash -272189558, now seen corresponding path program 1 times [2023-12-19 11:02:50,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:50,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891452029] [2023-12-19 11:02:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:50,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:02:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:02:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:02:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:02:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:02:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:02:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:02:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:02:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:02:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:02:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:02:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:02:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:02:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:02:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:02:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:02:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 11:02:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 11:02:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 11:02:50,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:50,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891452029] [2023-12-19 11:02:50,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891452029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:50,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:50,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 11:02:50,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960372347] [2023-12-19 11:02:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:50,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 11:02:50,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:50,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 11:02:50,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 11:02:50,586 INFO L87 Difference]: Start difference. First operand 43 states and 64 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 11:02:50,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:50,753 INFO L93 Difference]: Finished difference Result 85 states and 127 transitions. [2023-12-19 11:02:50,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 11:02:50,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 108 [2023-12-19 11:02:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:50,759 INFO L225 Difference]: With dead ends: 85 [2023-12-19 11:02:50,759 INFO L226 Difference]: Without dead ends: 43 [2023-12-19 11:02:50,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 11:02:50,764 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 60 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:50,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 73 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:02:50,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-19 11:02:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-19 11:02:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 11:02:50,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 63 transitions. [2023-12-19 11:02:50,776 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 63 transitions. Word has length 108 [2023-12-19 11:02:50,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:50,777 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 63 transitions. [2023-12-19 11:02:50,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 11:02:50,778 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 63 transitions. [2023-12-19 11:02:50,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 11:02:50,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:50,779 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1] [2023-12-19 11:02:50,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 11:02:50,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:50,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash -270342516, now seen corresponding path program 1 times [2023-12-19 11:02:50,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:50,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471319088] [2023-12-19 11:02:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:02:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:02:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:02:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:02:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:02:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:02:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:02:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:02:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:02:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:02:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:02:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:02:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:02:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:02:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:02:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:02:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 11:02:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 11:02:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:52,379 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 11:02:52,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:52,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471319088] [2023-12-19 11:02:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471319088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:52,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:52,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 11:02:52,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875283532] [2023-12-19 11:02:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:52,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:02:52,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:52,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:02:52,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 11:02:52,387 INFO L87 Difference]: Start difference. First operand 43 states and 63 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 11:02:52,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:52,639 INFO L93 Difference]: Finished difference Result 69 states and 98 transitions. [2023-12-19 11:02:52,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 11:02:52,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 108 [2023-12-19 11:02:52,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:52,645 INFO L225 Difference]: With dead ends: 69 [2023-12-19 11:02:52,645 INFO L226 Difference]: Without dead ends: 67 [2023-12-19 11:02:52,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-12-19 11:02:52,647 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 45 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:52,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 247 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:02:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-19 11:02:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2023-12-19 11:02:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 11:02:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 93 transitions. [2023-12-19 11:02:52,676 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 93 transitions. Word has length 108 [2023-12-19 11:02:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:52,677 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 93 transitions. [2023-12-19 11:02:52,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 11:02:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2023-12-19 11:02:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 11:02:52,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:52,682 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1] [2023-12-19 11:02:52,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 11:02:52,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:52,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:52,683 INFO L85 PathProgramCache]: Analyzing trace with hash -270282934, now seen corresponding path program 1 times [2023-12-19 11:02:52,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:52,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348913615] [2023-12-19 11:02:52,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:52,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:02:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:02:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:02:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:02:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:02:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:02:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:02:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:02:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:02:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:02:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:02:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:02:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:02:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:02:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:02:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:02:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 11:02:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 11:02:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:54,264 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 11:02:54,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:54,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348913615] [2023-12-19 11:02:54,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348913615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:54,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:54,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 11:02:54,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447509367] [2023-12-19 11:02:54,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:54,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:02:54,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:02:54,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 11:02:54,267 INFO L87 Difference]: Start difference. First operand 64 states and 93 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 11:02:54,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:54,504 INFO L93 Difference]: Finished difference Result 80 states and 114 transitions. [2023-12-19 11:02:54,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 11:02:54,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 108 [2023-12-19 11:02:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:54,505 INFO L225 Difference]: With dead ends: 80 [2023-12-19 11:02:54,505 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 11:02:54,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-12-19 11:02:54,506 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 66 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:54,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 286 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:02:54,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 11:02:54,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 11:02:54,507 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) [2023-12-19 11:02:54,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 11:02:54,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2023-12-19 11:02:54,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:54,507 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 11:02:54,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 11:02:54,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 11:02:54,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 11:02:54,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 11:02:54,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 11:02:54,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 11:02:54,610 INFO L899 garLoopResultBuilder]: For program point L93(lines 66 94) no Hoare annotation was computed. [2023-12-19 11:02:54,610 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (<= ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)))) [2023-12-19 11:02:54,611 INFO L895 garLoopResultBuilder]: At program point L89-1(line 89) the Hoare annotation is: (<= ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)))) [2023-12-19 11:02:54,611 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 11:02:54,611 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 11:02:54,611 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-19 11:02:54,611 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 11:02:54,611 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,611 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,611 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-19 11:02:54,611 INFO L899 garLoopResultBuilder]: For program point L90(line 90) no Hoare annotation was computed. [2023-12-19 11:02:54,611 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 11:02:54,611 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (<= ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)))) [2023-12-19 11:02:54,611 INFO L895 garLoopResultBuilder]: At program point L86-1(line 86) the Hoare annotation is: (<= ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)))) [2023-12-19 11:02:54,612 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-19 11:02:54,612 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 53) no Hoare annotation was computed. [2023-12-19 11:02:54,612 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 45 53) no Hoare annotation was computed. [2023-12-19 11:02:54,612 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,612 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,612 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 11:02:54,612 INFO L899 garLoopResultBuilder]: For program point L87(line 87) no Hoare annotation was computed. [2023-12-19 11:02:54,612 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (<= ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)))) [2023-12-19 11:02:54,612 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (<= ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)))) [2023-12-19 11:02:54,612 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 50) no Hoare annotation was computed. [2023-12-19 11:02:54,612 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-19 11:02:54,612 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 11:02:54,612 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,612 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,613 INFO L895 garLoopResultBuilder]: At program point L104-2(lines 104 110) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,613 INFO L899 garLoopResultBuilder]: For program point L104-3(lines 104 110) no Hoare annotation was computed. [2023-12-19 11:02:54,613 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (<= ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)))) [2023-12-19 11:02:54,613 INFO L895 garLoopResultBuilder]: At program point L92-1(line 92) the Hoare annotation is: (<= ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)))) [2023-12-19 11:02:54,613 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 59) no Hoare annotation was computed. [2023-12-19 11:02:54,613 INFO L899 garLoopResultBuilder]: For program point L55-2(lines 39 65) no Hoare annotation was computed. [2023-12-19 11:02:54,613 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2023-12-19 11:02:54,613 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,613 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,613 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-19 11:02:54,613 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 65) no Hoare annotation was computed. [2023-12-19 11:02:54,613 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,614 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (< ~var_1_19~0 (+ ~var_1_8~0 (* 256 (div ~var_1_19~0 256)) 1)) [2023-12-19 11:02:54,614 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 11:02:54,614 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 11:02:54,614 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 11:02:54,614 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 11:02:54,616 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-19 11:02:54,617 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 11:02:54,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:02:54 BoogieIcfgContainer [2023-12-19 11:02:54,625 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 11:02:54,626 INFO L158 Benchmark]: Toolchain (without parser) took 5690.96ms. Allocated memory was 302.0MB in the beginning and 375.4MB in the end (delta: 73.4MB). Free memory was 247.8MB in the beginning and 177.1MB in the end (delta: 70.8MB). Peak memory consumption was 144.7MB. Max. memory is 8.0GB. [2023-12-19 11:02:54,626 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:02:54,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.57ms. Allocated memory is still 302.0MB. Free memory was 247.6MB in the beginning and 235.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 11:02:54,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.49ms. Allocated memory is still 302.0MB. Free memory was 235.2MB in the beginning and 232.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 11:02:54,627 INFO L158 Benchmark]: Boogie Preprocessor took 54.21ms. Allocated memory is still 302.0MB. Free memory was 232.6MB in the beginning and 230.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 11:02:54,627 INFO L158 Benchmark]: RCFGBuilder took 460.96ms. Allocated memory is still 302.0MB. Free memory was 229.8MB in the beginning and 263.7MB in the end (delta: -34.0MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. [2023-12-19 11:02:54,627 INFO L158 Benchmark]: TraceAbstraction took 4916.49ms. Allocated memory was 302.0MB in the beginning and 375.4MB in the end (delta: 73.4MB). Free memory was 263.2MB in the beginning and 177.1MB in the end (delta: 86.1MB). Peak memory consumption was 159.0MB. Max. memory is 8.0GB. [2023-12-19 11:02:54,628 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 215.57ms. Allocated memory is still 302.0MB. Free memory was 247.6MB in the beginning and 235.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.49ms. Allocated memory is still 302.0MB. Free memory was 235.2MB in the beginning and 232.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.21ms. Allocated memory is still 302.0MB. Free memory was 232.6MB in the beginning and 230.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 460.96ms. Allocated memory is still 302.0MB. Free memory was 229.8MB in the beginning and 263.7MB in the end (delta: -34.0MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. * TraceAbstraction took 4916.49ms. Allocated memory was 302.0MB in the beginning and 375.4MB in the end (delta: 73.4MB). Free memory was 263.2MB in the beginning and 177.1MB in the end (delta: 86.1MB). Peak memory consumption was 159.0MB. 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: 4.8s, OverallIterations: 4, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 667 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 372 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 295 mSDtfsCounter, 212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=3, InterpolantAutomatonStates: 22, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 89 PreInvPairs, 126 NumberOfFragments, 183 HoareAnnotationTreeSize, 89 FormulaSimplifications, 2227 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FormulaSimplificationsInter, 418 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 432 NumberOfCodeBlocks, 432 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 1053 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2448/2448 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: 104]: Loop Invariant Derived loop invariant: (var_1_19 < ((var_1_8 + (256 * (var_1_19 / 256))) + 1)) RESULT: Ultimate proved your program to be correct! [2023-12-19 11:02:54,655 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...