/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:41:36,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:41:36,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 20:41:36,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:41:36,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:41:36,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:41:36,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:41:36,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:41:36,453 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:41:36,456 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:41:36,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:41:36,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:41:36,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:41:36,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:41:36,460 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:41:36,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:41:36,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:41:36,460 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:41:36,460 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:41:36,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:41:36,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:41:36,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:41:36,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:41:36,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:41:36,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:41:36,462 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:41:36,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:41:36,463 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:41:36,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:41:36,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:41:36,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:41:36,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:41:36,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:41:36,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:41:36,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:41:36,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:41:36,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:41:36,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:41:36,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:41:36,466 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:41:36,466 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:41:36,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:41:36,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:41:36,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:41:36,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:41:36,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:41:36,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:41:36,731 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:41:36,731 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:41:36,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-1.i [2023-12-15 20:41:37,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:41:38,142 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:41:38,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-1.i [2023-12-15 20:41:38,149 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69669ff8c/e0b182bb1211488899a4167bca06e03f/FLAG61eacf17f [2023-12-15 20:41:38,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69669ff8c/e0b182bb1211488899a4167bca06e03f [2023-12-15 20:41:38,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:41:38,163 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:41:38,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:41:38,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:41:38,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:41:38,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@474fcb0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38, skipping insertion in model container [2023-12-15 20:41:38,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:41:38,353 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-1.i[915,928] [2023-12-15 20:41:38,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:41:38,391 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:41:38,399 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-1.i[915,928] [2023-12-15 20:41:38,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:41:38,428 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:41:38,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38 WrapperNode [2023-12-15 20:41:38,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:41:38,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:41:38,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:41:38,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:41:38,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,468 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 128 [2023-12-15 20:41:38,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:41:38,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:41:38,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:41:38,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:41:38,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,481 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,496 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]. [2023-12-15 20:41:38,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:41:38,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:41:38,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:41:38,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:41:38,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (1/1) ... [2023-12-15 20:41:38,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:41:38,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:41:38,567 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) [2023-12-15 20:41:38,591 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 [2023-12-15 20:41:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:41:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:41:38,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:41:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:41:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:41:38,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:41:38,694 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:41:38,696 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:41:38,930 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:41:38,962 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:41:38,962 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:41:38,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:41:38 BoogieIcfgContainer [2023-12-15 20:41:38,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:41:38,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:41:38,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:41:38,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:41:38,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:41:38" (1/3) ... [2023-12-15 20:41:38,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f040eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:41:38, skipping insertion in model container [2023-12-15 20:41:38,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:41:38" (2/3) ... [2023-12-15 20:41:38,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f040eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:41:38, skipping insertion in model container [2023-12-15 20:41:38,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:41:38" (3/3) ... [2023-12-15 20:41:38,970 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-1.i [2023-12-15 20:41:38,984 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:41:38,985 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:41:39,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:41:39,030 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;@53aebd88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:41:39,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:41:39,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.4375) internal successors, (46), 33 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 20:41:39,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-15 20:41:39,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:39,050 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:39,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:39,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1024706342, now seen corresponding path program 1 times [2023-12-15 20:41:39,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:39,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82492537] [2023-12-15 20:41:39,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:39,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:41:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 20:41:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 20:41:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 20:41:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 20:41:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 20:41:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 20:41:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-15 20:41:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-15 20:41:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 20:41:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 20:41:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 20:41:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 20:41:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 20:41:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 20:41:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 20:41:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 20:41:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:40,322 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 20:41:40,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:40,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82492537] [2023-12-15 20:41:40,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82492537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:40,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:40,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 20:41:40,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617821491] [2023-12-15 20:41:40,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:40,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 20:41:40,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:40,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 20:41:40,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:41:40,363 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.4375) internal successors, (46), 33 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:40,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:40,687 INFO L93 Difference]: Finished difference Result 135 states and 228 transitions. [2023-12-15 20:41:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 20:41:40,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2023-12-15 20:41:40,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:40,697 INFO L225 Difference]: With dead ends: 135 [2023-12-15 20:41:40,697 INFO L226 Difference]: Without dead ends: 84 [2023-12-15 20:41:40,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-15 20:41:40,703 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 56 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:40,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 277 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 20:41:40,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-15 20:41:40,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 60. [2023-12-15 20:41:40,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 20:41:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2023-12-15 20:41:40,740 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 107 [2023-12-15 20:41:40,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:40,742 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2023-12-15 20:41:40,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:40,742 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2023-12-15 20:41:40,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-15 20:41:40,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:40,746 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:40,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 20:41:40,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:40,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:40,747 INFO L85 PathProgramCache]: Analyzing trace with hash 631679332, now seen corresponding path program 1 times [2023-12-15 20:41:40,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:40,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084684853] [2023-12-15 20:41:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:40,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:41:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 20:41:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 20:41:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 20:41:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 20:41:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 20:41:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 20:41:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-15 20:41:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-15 20:41:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 20:41:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 20:41:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 20:41:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 20:41:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 20:41:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 20:41:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 20:41:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 20:41:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 20:41:41,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084684853] [2023-12-15 20:41:41,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084684853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:41,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:41,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 20:41:41,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033210983] [2023-12-15 20:41:41,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:41,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 20:41:41,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:41,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 20:41:41,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:41:41,313 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:41,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:41,588 INFO L93 Difference]: Finished difference Result 143 states and 210 transitions. [2023-12-15 20:41:41,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 20:41:41,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2023-12-15 20:41:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:41,594 INFO L225 Difference]: With dead ends: 143 [2023-12-15 20:41:41,595 INFO L226 Difference]: Without dead ends: 84 [2023-12-15 20:41:41,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-15 20:41:41,599 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 42 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:41,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 318 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 20:41:41,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-15 20:41:41,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 60. [2023-12-15 20:41:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 20:41:41,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2023-12-15 20:41:41,617 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 107 [2023-12-15 20:41:41,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:41,618 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2023-12-15 20:41:41,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:41,619 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2023-12-15 20:41:41,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 20:41:41,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:41,625 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:41,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 20:41:41,625 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:41,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash -810149765, now seen corresponding path program 1 times [2023-12-15 20:41:41,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:41,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245320168] [2023-12-15 20:41:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:41,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:41:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 20:41:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 20:41:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 20:41:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 20:41:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 20:41:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 20:41:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-15 20:41:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-15 20:41:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 20:41:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 20:41:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 20:41:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 20:41:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 20:41:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 20:41:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 20:41:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 20:41:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 20:41:41,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:41,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245320168] [2023-12-15 20:41:41,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245320168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:41,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:41,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 20:41:41,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986310219] [2023-12-15 20:41:41,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:41,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 20:41:41,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:41,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 20:41:41,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:41:41,976 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:42,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:42,106 INFO L93 Difference]: Finished difference Result 145 states and 213 transitions. [2023-12-15 20:41:42,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 20:41:42,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-12-15 20:41:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:42,111 INFO L225 Difference]: With dead ends: 145 [2023-12-15 20:41:42,111 INFO L226 Difference]: Without dead ends: 86 [2023-12-15 20:41:42,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-15 20:41:42,116 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 77 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:42,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 286 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:41:42,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-15 20:41:42,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 62. [2023-12-15 20:41:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 20:41:42,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2023-12-15 20:41:42,129 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 108 [2023-12-15 20:41:42,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:42,130 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2023-12-15 20:41:42,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:42,130 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2023-12-15 20:41:42,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 20:41:42,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:42,137 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:42,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 20:41:42,137 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:42,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:42,138 INFO L85 PathProgramCache]: Analyzing trace with hash -551984327, now seen corresponding path program 1 times [2023-12-15 20:41:42,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:42,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490222236] [2023-12-15 20:41:42,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:42,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:41:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 20:41:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 20:41:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 20:41:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 20:41:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 20:41:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 20:41:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-15 20:41:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-15 20:41:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 20:41:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 20:41:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 20:41:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 20:41:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 20:41:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 20:41:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 20:41:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 20:41:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 20:41:42,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:42,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490222236] [2023-12-15 20:41:42,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490222236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:42,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:42,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 20:41:42,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641347647] [2023-12-15 20:41:42,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:42,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 20:41:42,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:42,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 20:41:42,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 20:41:42,606 INFO L87 Difference]: Start difference. First operand 62 states and 92 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:42,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:42,912 INFO L93 Difference]: Finished difference Result 163 states and 235 transitions. [2023-12-15 20:41:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 20:41:42,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-12-15 20:41:42,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:42,914 INFO L225 Difference]: With dead ends: 163 [2023-12-15 20:41:42,914 INFO L226 Difference]: Without dead ends: 102 [2023-12-15 20:41:42,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-15 20:41:42,916 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 87 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:42,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 436 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 20:41:42,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-15 20:41:42,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 62. [2023-12-15 20:41:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 20:41:42,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2023-12-15 20:41:42,921 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 108 [2023-12-15 20:41:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:42,922 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2023-12-15 20:41:42,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:42,922 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2023-12-15 20:41:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 20:41:42,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:42,923 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:42,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 20:41:42,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:42,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:42,924 INFO L85 PathProgramCache]: Analyzing trace with hash -945011337, now seen corresponding path program 1 times [2023-12-15 20:41:42,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:42,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401675489] [2023-12-15 20:41:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:42,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:41:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 20:41:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 20:41:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 20:41:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 20:41:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 20:41:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 20:41:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-15 20:41:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-15 20:41:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 20:41:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 20:41:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 20:41:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 20:41:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 20:41:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 20:41:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 20:41:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 20:41:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,345 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 20:41:43,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:43,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401675489] [2023-12-15 20:41:43,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401675489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:43,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:43,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 20:41:43,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902335964] [2023-12-15 20:41:43,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:43,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 20:41:43,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:43,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 20:41:43,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 20:41:43,347 INFO L87 Difference]: Start difference. First operand 62 states and 92 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:43,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:43,553 INFO L93 Difference]: Finished difference Result 163 states and 234 transitions. [2023-12-15 20:41:43,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 20:41:43,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-12-15 20:41:43,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:43,555 INFO L225 Difference]: With dead ends: 163 [2023-12-15 20:41:43,555 INFO L226 Difference]: Without dead ends: 102 [2023-12-15 20:41:43,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-12-15 20:41:43,557 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 76 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:43,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 377 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:41:43,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-15 20:41:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 52. [2023-12-15 20:41:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 20:41:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 76 transitions. [2023-12-15 20:41:43,570 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 76 transitions. Word has length 108 [2023-12-15 20:41:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:43,570 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 76 transitions. [2023-12-15 20:41:43,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:43,571 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2023-12-15 20:41:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 20:41:43,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:43,571 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:43,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 20:41:43,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:43,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:43,572 INFO L85 PathProgramCache]: Analyzing trace with hash 868152333, now seen corresponding path program 1 times [2023-12-15 20:41:43,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:43,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409702142] [2023-12-15 20:41:43,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:43,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:43,587 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:41:43,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222998531] [2023-12-15 20:41:43,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:43,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:41:43,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:41:43,590 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) [2023-12-15 20:41:43,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 20:41:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:43,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-15 20:41:43,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:41:47,111 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 235 proven. 39 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-12-15 20:41:47,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:41:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-15 20:41:50,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:50,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409702142] [2023-12-15 20:41:50,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:41:50,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222998531] [2023-12-15 20:41:50,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222998531] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:41:50,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:41:50,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2023-12-15 20:41:50,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185806461] [2023-12-15 20:41:50,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:41:50,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-15 20:41:50,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:50,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-15 20:41:50,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-12-15 20:41:50,421 INFO L87 Difference]: Start difference. First operand 52 states and 76 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-15 20:41:51,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:51,646 INFO L93 Difference]: Finished difference Result 201 states and 286 transitions. [2023-12-15 20:41:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-15 20:41:51,647 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 109 [2023-12-15 20:41:51,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:51,648 INFO L225 Difference]: With dead ends: 201 [2023-12-15 20:41:51,648 INFO L226 Difference]: Without dead ends: 150 [2023-12-15 20:41:51,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=267, Invalid=855, Unknown=0, NotChecked=0, Total=1122 [2023-12-15 20:41:51,650 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 191 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:51,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 375 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 20:41:51,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-15 20:41:51,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 88. [2023-12-15 20:41:51,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 56 states have internal predecessors, (67), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 20:41:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 125 transitions. [2023-12-15 20:41:51,666 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 125 transitions. Word has length 109 [2023-12-15 20:41:51,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:51,666 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 125 transitions. [2023-12-15 20:41:51,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-15 20:41:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 125 transitions. [2023-12-15 20:41:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 20:41:51,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:51,668 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:51,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 20:41:51,881 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 [2023-12-15 20:41:51,881 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:51,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:51,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1261179343, now seen corresponding path program 1 times [2023-12-15 20:41:51,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:51,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467758693] [2023-12-15 20:41:51,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:51,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:51,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:41:51,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1893813001] [2023-12-15 20:41:51,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:51,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:41:51,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:41:51,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:41:51,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 20:41:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:51,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 20:41:51,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:41:52,014 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 20:41:52,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:41:52,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:52,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467758693] [2023-12-15 20:41:52,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:41:52,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893813001] [2023-12-15 20:41:52,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893813001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:52,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:52,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:41:52,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615183437] [2023-12-15 20:41:52,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:52,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:41:52,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:52,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:41:52,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:41:52,016 INFO L87 Difference]: Start difference. First operand 88 states and 125 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:52,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:52,066 INFO L93 Difference]: Finished difference Result 181 states and 254 transitions. [2023-12-15 20:41:52,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:41:52,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-12-15 20:41:52,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:52,069 INFO L225 Difference]: With dead ends: 181 [2023-12-15 20:41:52,069 INFO L226 Difference]: Without dead ends: 112 [2023-12-15 20:41:52,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:41:52,070 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:52,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 160 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:41:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-15 20:41:52,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 88. [2023-12-15 20:41:52,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 20:41:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2023-12-15 20:41:52,085 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 109 [2023-12-15 20:41:52,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:52,085 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2023-12-15 20:41:52,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:52,085 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2023-12-15 20:41:52,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 20:41:52,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:52,087 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:52,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 20:41:52,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-15 20:41:52,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:52,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:52,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1259332301, now seen corresponding path program 1 times [2023-12-15 20:41:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:52,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254749407] [2023-12-15 20:41:52,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:52,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:52,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:41:52,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32772928] [2023-12-15 20:41:52,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:52,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:41:52,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:41:52,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:41:52,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 20:41:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:52,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-15 20:41:52,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:41:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 20:41:54,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:41:54,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:54,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254749407] [2023-12-15 20:41:54,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:41:54,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32772928] [2023-12-15 20:41:54,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32772928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:54,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:54,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 20:41:54,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131940151] [2023-12-15 20:41:54,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:54,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 20:41:54,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:54,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 20:41:54,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-15 20:41:54,837 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:55,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:55,253 INFO L93 Difference]: Finished difference Result 129 states and 174 transitions. [2023-12-15 20:41:55,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 20:41:55,254 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-12-15 20:41:55,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:55,255 INFO L225 Difference]: With dead ends: 129 [2023-12-15 20:41:55,255 INFO L226 Difference]: Without dead ends: 127 [2023-12-15 20:41:55,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-15 20:41:55,256 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 110 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:55,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 520 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 20:41:55,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-12-15 20:41:55,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2023-12-15 20:41:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.1428571428571428) internal successors, (88), 79 states have internal predecessors, (88), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-15 20:41:55,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 170 transitions. [2023-12-15 20:41:55,269 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 170 transitions. Word has length 109 [2023-12-15 20:41:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:55,269 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 170 transitions. [2023-12-15 20:41:55,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 170 transitions. [2023-12-15 20:41:55,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-15 20:41:55,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:55,271 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:55,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 20:41:55,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:41:55,472 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:55,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1854877440, now seen corresponding path program 1 times [2023-12-15 20:41:55,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:55,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656775861] [2023-12-15 20:41:55,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:55,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:55,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:41:55,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268985946] [2023-12-15 20:41:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:55,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:41:55,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:41:55,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:41:55,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 20:41:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:55,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-15 20:41:55,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:41:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 20:41:56,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:41:56,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:56,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656775861] [2023-12-15 20:41:56,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:41:56,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268985946] [2023-12-15 20:41:56,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268985946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:56,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:56,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 20:41:56,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526691616] [2023-12-15 20:41:56,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:56,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 20:41:56,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:56,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 20:41:56,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-15 20:41:56,219 INFO L87 Difference]: Start difference. First operand 125 states and 170 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:56,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:41:56,894 INFO L93 Difference]: Finished difference Result 164 states and 220 transitions. [2023-12-15 20:41:56,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 20:41:56,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2023-12-15 20:41:56,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:41:56,896 INFO L225 Difference]: With dead ends: 164 [2023-12-15 20:41:56,896 INFO L226 Difference]: Without dead ends: 162 [2023-12-15 20:41:56,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-15 20:41:56,897 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 101 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 20:41:56,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 480 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 20:41:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-15 20:41:56,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 128. [2023-12-15 20:41:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-15 20:41:56,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 173 transitions. [2023-12-15 20:41:56,913 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 173 transitions. Word has length 110 [2023-12-15 20:41:56,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:41:56,914 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 173 transitions. [2023-12-15 20:41:56,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:41:56,914 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 173 transitions. [2023-12-15 20:41:56,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 20:41:56,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:41:56,915 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:41:56,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 20:41:57,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:41:57,121 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:41:57,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:41:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1990040872, now seen corresponding path program 1 times [2023-12-15 20:41:57,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:41:57,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832570990] [2023-12-15 20:41:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:57,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:41:57,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:41:57,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757651543] [2023-12-15 20:41:57,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:41:57,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:41:57,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:41:57,133 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:41:57,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 20:41:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:41:57,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-15 20:41:57,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:41:58,720 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-15 20:41:58,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:41:58,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:41:58,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832570990] [2023-12-15 20:41:58,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:41:58,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757651543] [2023-12-15 20:41:58,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757651543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:41:58,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:41:58,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 20:41:58,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650415223] [2023-12-15 20:41:58,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:41:58,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 20:41:58,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:41:58,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 20:41:58,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-15 20:41:58,722 INFO L87 Difference]: Start difference. First operand 128 states and 173 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:42:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:42:00,414 INFO L93 Difference]: Finished difference Result 151 states and 195 transitions. [2023-12-15 20:42:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-15 20:42:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2023-12-15 20:42:00,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:42:00,416 INFO L225 Difference]: With dead ends: 151 [2023-12-15 20:42:00,416 INFO L226 Difference]: Without dead ends: 149 [2023-12-15 20:42:00,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2023-12-15 20:42:00,417 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 95 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 20:42:00,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 317 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 20:42:00,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-15 20:42:00,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 132. [2023-12-15 20:42:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 83 states have (on average 1.1325301204819278) internal successors, (94), 85 states have internal predecessors, (94), 41 states have call successors, (41), 7 states have call predecessors, (41), 7 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-15 20:42:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 176 transitions. [2023-12-15 20:42:00,433 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 176 transitions. Word has length 111 [2023-12-15 20:42:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:42:00,434 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 176 transitions. [2023-12-15 20:42:00,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:42:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 176 transitions. [2023-12-15 20:42:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 20:42:00,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:42:00,435 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:42:00,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 20:42:00,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-15 20:42:00,642 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:42:00,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:42:00,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1495579798, now seen corresponding path program 1 times [2023-12-15 20:42:00,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:42:00,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694245924] [2023-12-15 20:42:00,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:42:00,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:42:00,655 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:42:00,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87546655] [2023-12-15 20:42:00,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:42:00,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:42:00,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:42:00,657 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:42:00,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 20:42:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:42:00,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-15 20:42:00,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:42:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-15 20:42:02,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:42:02,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:42:02,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694245924] [2023-12-15 20:42:02,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:42:02,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87546655] [2023-12-15 20:42:02,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87546655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:42:02,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:42:02,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 20:42:02,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923915677] [2023-12-15 20:42:02,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:42:02,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 20:42:02,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:42:02,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 20:42:02,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-15 20:42:02,839 INFO L87 Difference]: Start difference. First operand 132 states and 176 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:42:04,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:42:04,562 INFO L93 Difference]: Finished difference Result 143 states and 187 transitions. [2023-12-15 20:42:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-15 20:42:04,562 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2023-12-15 20:42:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:42:04,563 INFO L225 Difference]: With dead ends: 143 [2023-12-15 20:42:04,563 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 20:42:04,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2023-12-15 20:42:04,564 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 114 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 20:42:04,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 276 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 20:42:04,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 20:42:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 20:42:04,565 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) [2023-12-15 20:42:04,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 20:42:04,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2023-12-15 20:42:04,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:42:04,565 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 20:42:04,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 20:42:04,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 20:42:04,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 20:42:04,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 20:42:04,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 20:42:04,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:42:04,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 20:42:05,286 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (<= 0 ~var_1_11~0) [2023-12-15 20:42:05,286 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 64) no Hoare annotation was computed. [2023-12-15 20:42:05,286 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-15 20:42:05,286 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-15 20:42:05,286 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-15 20:42:05,286 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,286 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,286 INFO L899 garLoopResultBuilder]: For program point L94(lines 69 95) no Hoare annotation was computed. [2023-12-15 20:42:05,286 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,286 INFO L895 garLoopResultBuilder]: At program point L86-1(line 86) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,286 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-15 20:42:05,286 INFO L899 garLoopResultBuilder]: For program point L87(line 87) no Hoare annotation was computed. [2023-12-15 20:42:05,286 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 20:42:05,286 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,287 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,287 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,287 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2023-12-15 20:42:05,287 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (not (= (mod ~var_1_13~0 256) 0)) [2023-12-15 20:42:05,287 INFO L895 garLoopResultBuilder]: At program point L89-1(line 89) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-15 20:42:05,287 INFO L895 garLoopResultBuilder]: At program point L106-2(lines 106 112) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point L106-3(lines 106 112) no Hoare annotation was computed. [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point L90(line 90) no Hoare annotation was computed. [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point L57-2(line 57) no Hoare annotation was computed. [2023-12-15 20:42:05,287 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,287 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,287 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 20:42:05,294 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 66) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 58 66) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,295 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (and (<= 0 ~var_1_11~0) (not (= (mod ~var_1_13~0 256) 0))) [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 54) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L42-2(lines 39 47) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L100-3(line 100) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L100-5(line 100) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (<= 0 ~var_1_11~0) [2023-12-15 20:42:05,295 INFO L895 garLoopResultBuilder]: At program point L92-1(line 92) the Hoare annotation is: (<= 0 ~var_1_11~0) [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 65) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2023-12-15 20:42:05,295 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-15 20:42:05,296 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-15 20:42:05,296 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-15 20:42:05,296 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-15 20:42:05,298 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:42:05,299 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 20:42:05,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:42:05 BoogieIcfgContainer [2023-12-15 20:42:05,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 20:42:05,307 INFO L158 Benchmark]: Toolchain (without parser) took 27144.19ms. Allocated memory was 256.9MB in the beginning and 682.6MB in the end (delta: 425.7MB). Free memory was 216.5MB in the beginning and 645.3MB in the end (delta: -428.9MB). Peak memory consumption was 404.4MB. Max. memory is 8.0GB. [2023-12-15 20:42:05,307 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 20:42:05,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.71ms. Allocated memory is still 256.9MB. Free memory was 216.5MB in the beginning and 203.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-15 20:42:05,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.39ms. Allocated memory is still 256.9MB. Free memory was 203.9MB in the beginning and 201.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 20:42:05,308 INFO L158 Benchmark]: Boogie Preprocessor took 38.66ms. Allocated memory is still 256.9MB. Free memory was 201.4MB in the beginning and 199.3MB in the end (delta: 2.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 20:42:05,308 INFO L158 Benchmark]: RCFGBuilder took 453.83ms. Allocated memory is still 256.9MB. Free memory was 199.3MB in the beginning and 181.0MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-15 20:42:05,308 INFO L158 Benchmark]: TraceAbstraction took 26342.21ms. Allocated memory was 256.9MB in the beginning and 682.6MB in the end (delta: 425.7MB). Free memory was 179.9MB in the beginning and 645.3MB in the end (delta: -465.4MB). Peak memory consumption was 367.7MB. Max. memory is 8.0GB. [2023-12-15 20:42:05,309 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 264.71ms. Allocated memory is still 256.9MB. Free memory was 216.5MB in the beginning and 203.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.39ms. Allocated memory is still 256.9MB. Free memory was 203.9MB in the beginning and 201.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.66ms. Allocated memory is still 256.9MB. Free memory was 201.4MB in the beginning and 199.3MB in the end (delta: 2.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 453.83ms. Allocated memory is still 256.9MB. Free memory was 199.3MB in the beginning and 181.0MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 26342.21ms. Allocated memory was 256.9MB in the beginning and 682.6MB in the end (delta: 425.7MB). Free memory was 179.9MB in the beginning and 645.3MB in the end (delta: -465.4MB). Peak memory consumption was 367.7MB. 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, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.3s, OverallIterations: 11, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1098 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 994 mSDsluCounter, 3822 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2827 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3254 IncrementalHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 995 mSDtfsCounter, 3254 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1035 GetRequests, 894 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=10, InterpolantAutomatonStates: 131, 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, 11 MinimizatonAttempts, 301 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 178 PreInvPairs, 223 NumberOfFragments, 156 HoareAnnotationTreeSize, 178 FormulaSimplifications, 21374 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 19 FormulaSimplificationsInter, 3998 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 16.0s InterpolantComputationTime, 1197 NumberOfCodeBlocks, 1197 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1294 ConstructedInterpolants, 11 QuantifiedInterpolants, 4615 SizeOfPredicates, 69 NumberOfNonLiveVariables, 1578 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 6477/6528 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: ((0 <= var_1_11) && !(((var_1_13 % 256) == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-15 20:42:05,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...